滬教版二年級數(shù)學(xué)下冊計算題大全18

1、681 + 442-681 = 886-299+ 13 =523+492-523 =438+575-475 = 990 139-361 =4X2+6X2=25 X 7 =3X 8-2X 8 =23X4 =649X7 =9X2+6=51 + 48 + 6 =6+2+34=8+42=2430 + 5 =4x4x3=16+2 + 4 =700+900 =700-200 =710+200 =130-90=200+ 152+ 148 =407+ 107+ 193 = 106+475- 106 = 682-393+ 11 =153+239- 153 =245+832- 132 =894-43-557 =4

2、X3+3X3=18X8 =7X 5-2X 5 =19X8 =498X5 =6X3+6=75+48+6 =27+3 + 41 =12+61 =5420+4 =5X3X2=48 + 4+3 =700+ 100 =900-700 =620+ 160 =530- 120 =447+ 12+288 =419+200+81 =362+ 102-262 =988-398+ 10 =443+441-443 =156+205- 105 =752 141-259 =3X4+9X4=16X 3 =4X 9-2X 9 =12X 7 =769X6 =6X3+9=31 + 36 + 6 =27+9+52 =36+43 =

3、64 6 + 2 =4X2X2=60+5+3 =900+ 100 =900-700 =840+ 110 =780-620 =399+57+243 =590+ 162+ 10 =694+393-594 =981-391+ 10 =425+ 168-325 = 418+619-419 =712 177-223 =4X2+8X2=10X3 =5X43X4=25X3 =606X4 =2X3+9= 10+28+7 =35+5+89 =12 + 41 =51 16+4 =5X4X2=30- 5 + 3 = 400+200 =900-700 =330+ 180 = 630-470=471 + 120+280

4、 = 490+296+ 110 = 750+360-450 = 714-269+55 =610+295-410 = 462+826-426 = 910 174 126 = 9X9+5X9= 17X9 =4x22X2=20X 2 = 869X2 =9X8+2=34+42 + 6 =15+5+54 =27+91 =8542 + 6 =4X5X4=48+4 + 4 =700+900 =800-300 =860+ 120 =780-60=475+81 + 419 =240+ 122+ 160 =524+218-424 =934-293+59 =185+209- 185 = 148+605-205 =

5、921- 165-435 =6X 7+5X 7 =23 X 8 =5X 9-2X 9 =21 x 2 =483X2 =3X4+6=31 + 45+9 =24+3+82 =16+2 8 =60- 12+3 =3X5X5=100 + 5+4 =900+ 700 =300-200 =460+ 100 =560- 120 =452+ 149+351 =564+ 192+36 =997+460-897= 681-592+ 11 =840+ 135 140 = 479+692-492 = 991-81-519 =9X9+5X9=26X2 =4X 5 3X 5 =11X6 =91 9X9 =6X8+4=21

6、 + 18+6 =48+6+26 =15+53 =1832 + 4 =3X2X3=12+3 + 2 =400+400 =600-500 =230+530 =610-110 =430+ 185+215 =480+221 + 20 =601 + 145-301 =628-374+46 =847+459-547 = 421 + 363-263 = 737-58-342 =8X 8+2X 8 =27X2 =9X 7-2X 7 =20 x 9 =4381 + 9 =2X2X5=18+2 + 3 =400+900 =300 100 =670+320 =400-390 =495+ 179+221 =450+

7、 168+50 =223+486- 123 =742-378+36 =463+ 170-263 =477+327-227 =892- 195-405 =8X 7+5X 7 =23X5 =6X 9 2X 9 =11 x 8 =77 9x8 =21 4X3 =7X 7+2 =11 + 32 + 8 =12+2+87 =35+75 =89+24+6 =16+4+79 =32+8 3 =8563+9 =3X5X2=6X5+4=30 - 5+3 = 300+300 =400 100 = 120+570= 750-580 =155+75+325 = 341 + 162+ 159 = 320+ 125-22

8、0 = 616-494+78 =962+ 155-562 = 439+502-202 = 958 156 144 = 9X 5+9X 5 =15X 8 =8X24X2=22X4 =737X8 =7X 7+2 = 85+30 + 6 =48-8+74 = 12+2 3 = 6840 + 5 =4X4X3=24 + 4 + 2 = 100+300 =500-400 =690+300 =330-280 =128+31 + 369 =232+ 128+ 168 =806+401-606 =851-586+35 =908+ 185- 108 =429+ 129 129 =619- 113-287 =3X

9、6+7X6=11 X 7 =3X 7-2X 7 =26X 8 =593X9 =9X4+6=85+40+8 =54+9+22 =8+24=44 - 9 + 3 =5X4X4=30- 5 + 3 =200+300 =600-400 =180+270 =900-380 =183+38+462 =476+241+ 124 =416+403-416 =832-252+20 =337+340- 137 =357+608- 108 =691- 13-387 =7X 8+2X 8 =24X 2 =3X 7-2X 7 =26X 2 =995X2 =5X 7+9=60+ 18 + 2 =32+4+83 =48+6

10、 6 =6321+3 =5x3x6=80+4 + 4 =400+500 =1000- 100 =650+200 =530 10=146+ 199+ 101 =416+ 105+84 = 818+281-718 =766-380+14 =263+ 104-263 = 103+958- 158 =818-95-405 =5X 9+5X 9 =13X3 =9X 5 2X 5 =27X 5 =759X3 =2X8+6=90+24+4 =30+6+55 =20+ 4 4 =52- 12+3 =4X4X2=32 + 4 + 4 =700+200 =900-700 =670+ 130 =880-90=119

11、+ 121+179 =588+ 107+ 12 =608+485-508 =744-300+56 =685+ 144-585 =165+997-497 =893-62-338 =2X 7+7X 7 =10X4 =6X 5-5X 5 =17X 7 =81 3X9 =9X8+9=85+36 + 6 =14+2+31 =24+38 =8636 + 6 =2X5X2=8+2+2=400+400 =200 100 =150+440 =690-650 =476+ 106+294 =402+281+ 198 =937+ 120-437 =655 172+ 17 =709+ 185-709 =339+584-

12、384 =606 168-232 =9X8+6X8=26 X 7 =5X93X9=28X 3 =81 8X8 =7X8+4=75+45+9 =42+6 + 47 =54+95 =4948+6 =2X2X4=16+2 + 4 =900+ 700 =800-200 =810+ 140 =580-200 = 255+75+225 =401+ 149+ 199 =158+360- 158 =729-448+ 19 =355+298-255 =260 + 342 242 =973 127 173=7X 3+2X 3 = 15X 2 =3X 3-2X 3 =11 x 2 =625X7 =3X2+5=41

13、+ 10 + 2 = 6+2+31 =40 + 5 6 =68- 14 + 2 =3X2X2=48+4 + 4 = 600+500 =500 100 = 700+ 130 =480-70 =213+ 109+ 191 = 572+297+28 =204+251- 104 = 760-276+ 16 =195+319- 195 = 240+661- 161 = 791-34-266 =2X 7+6X 7 = 19X 7 =4X 5-2X 5 =11X2 =397x5 =4X 7+9 =69+21 + 3 =48+6+19 =18+9 2 =27- 12+3 =5X2X4=36+4+3 =400+

14、800 =300 100 =640+240 =370-290 =415+ 173+227=243+269+257 =842+442-842 =625-571 + 46 =825+430-625 =205+903-403 =913-66-334 =8X3+9X3=11 x 9 =5X 8-4X 8 =18X8 =6+32=4X5X3=3X9+9=72+35 + 7 =12+3+64 =32+43 =8836 + 9 =2X3X2=45 - 5+3 =600+ 100 =300 100 =330+430 =260-40=312+74+226 =573+ 147+27 =128+308- 128 =

15、868-594+26 =850+ 182-350 =393+791-791 =615-32-468 =6X9+6X9=26 X 9 =7X 3-6X 3 =10X 6 =1005X3 =3X2+7=32 + 4+14 =81 + 9 2 =13- 12+2 =5X4X4=80+4 + 4 =900+800 =800-200 =120+840 =900-870 =281+ 156+244 =534+273+ 166 =645+204-245 =986-498+ 12 =309+ 137-309 = 126+231-231 = 961-24-376=8X4+4X4=28X2 =8X 73X 7 =

16、18X7 =754x3 =5X6+7=55+64+8 =12+6+66 =498 + 2 =2X2X3=75-5+3 =600+600 =600-500 =470+ 180 = 110-80=164+ 113+387 = 209+262+291 = 240+325- 140 =620-388+68 =757+456-657 = 394+488-388 = 714- 116-384 =5X 7+7X 7 =14X 6 =9X 7-2X 7 =25 X 3 =464X3 =7X2+5=71 + 4 + 2 =27+3+61 =81 + 91 =2324 + 4 =60+ 5 + 4 = 800+4

17、00 =800-300 =340+590 = 820-390 =296+81 + 219 = 106+278+294= 152+ 141- 152 =642-576+34 =997+ 100-397= 170+607-407 = 687 193-407 =7X 3 + 4X 3 = 16X 8 =5X83X8=15X2 =825X4 =8X8+8=87+21 + 7 = 24+8+29 =164 4 = 4430+5 =5X3X3=60+5 + 3 =700+500 =800-300 =510+430 =130-70=129+ 104+ 196 = 590+220+ 110 = 671 + 1

18、38-671 = 915-581 + 66 =262+379-262 = 314+291-191 = 693- 164- 136 =8X4+2X4=22X 7 =8X 97X 9 =14X 6 =598X7 =6X5+3=79+21+3 =63+9+75 = 56+8 2 =1020 + 4 =3X4X3=30 - 5+3 =600+ 100 =1000-900 =260+410 = 920-230 =370+ 109+ 191 = 129+214+271 = 415+ 124-215 = 936-378+42 =591 + 198- 191 = 449+ 140 140 = 847 163

19、137= 6X2+3X2= 17X9 =7X 5-2X 5 =22X2 =594X3 =8X2+3= 47+ 14+7 =72+8+66 = 35+57 =9515+3 = 5X5X3=30- 5 + 3 = 400+ 700 =500-400 = 390+520 =820-690 =156+ 198+202 = 557+ 191 + 143 = 812+467- 112 = 861-573+ 12 =747+497-547 = 276+401-301 = 617 180-220 =3X 7+7X 7 = 10X 7 =6X63X6=11 x 8 =578X5 =2X9+8= 78+48 +

20、6 =36+4+59 =21 + 71 =79- 16 + 8 =3X4X5=30+5 + 2 =200+ 100 =200 100 = 310+600 =540-320 = 295+ 145+255 =456+ 156+44 =929+ 150-829 =621-458+37=786+247- 186 = 180+ 150- 150 = 840 162-338 =4X 3+2X 3 =29X 3 =5X 5 3X 5 =26 X 7 =726X9 =3X6+5=39+ 16+2 =15+3+60 =72+81 =61 12+3 =4X5X3=12+2 + 3 =100+800 =700-20

21、0 =630+ 180 =980-300 =122+ 167+ 133 =155+285+245 =193+252- 193 =916-496+80 =622+ 156 122 = 382+780-480 = 760-124-276 =6X8+5X8=10X 8 =4X 7-2X 7 =10X 6 =647X3 =3X9+4=90+ 12 + 4 =15+3+72 =42+7 4 =31 24 + 8 =4X5X6=40 + 5 + 4 =700+700 =500-400 =560+ 190 =760-450 =371 + 176+224 = 345+297+ 155 =978+ 118-27

22、8 =646-272+26 =503+354- 103 =139+830-430 =977-50-350 =6X4+6X4=16X2 =6X35X3=17X6 =133X4 =8X3+2= 42+45+5 =10+5+16 =8+42= 2427+3 =4X2X3=40 + 2 + 4 =200+300 =1000-100 =800+ 140 =210-20=118+26+274=320+ 169+80 =864+261-564 =824-392+68 =478+403-478 =359+593-293 =949-99-501 =2X 7+8X 7 =5X9+3=30+6+24 =3X 3-2

23、X 3 =22X 8 =395X3 =5X6+6= 84+20 + 4 =18+3+66 = 24+61 =978+2 = 5x3x4=40 + 5 + 2 = 400+800 = 900-600 =440+ 120 = 930-700 =383+200+ 100 = 557+216+43 = 147+457- 147 = 987-597+ 10 =141 + 297- 141 = 467+683-283 = 737 174 126 = 3X8+9X8=14X 2 =4X 7-2X 7 =844X8 =8X2+4=32+ 12+3 =6+2+13 =10+2 2 =21 15+3 =2X5X2

24、=8+2+2=200+700 =300 100 =180+500 =780-350 =396+ 192+ 108 =407+ 187+93 =613+332-213 =677- 195+ 18 =115+ 145-115 =273+474-274 =635-78-222 =6X6+2X6=16X5 =6X63X6=16X 3 =759X4 =76+49 + 7 =30+6+66 =27+37 =178 + 2 =3X2X5=12+2 + 2 =400+600 =200 100 =660+330 =920-400 =306+ 181 + 319 =646+241 + 54 =298+339- 1

25、98 =970-485+ 15 =669+292-669 =376+284-284 =806 151-449 = 8X8+3X8=25 X 9 =4X62X6=24 X 5 =283X7 =9X8+8=41 + 24 + 6 =25+51 = 8342+6 =2X2X6=40 + 5 + 4 = 200+200 =400 100 =470+270=310-40 =279+ 130+ 170= 207+256+293 =239+394-239 = 874 185+ 11 =654+334-354 = 350+444-444 = 702 121-279=4X6+7X6=10X4 =6X35X3=1

26、5X5 =508X3 =8X2+3= 10+56+8 =16+4+82 =6+22=4045 + 9 =45 - 5 + 3 =3X5X5=60+5+3 =500+800 =800-400 =240+620 =400 120 = 165+78+422 =546+ 156+ 154 = 375+435-375 = 631-141+10 =511 + 403- 111 = 109+822-522 = 872-80-320 =6X6+3X6=27 X 7 =9X25X2=19X 8 =91 6X7 =9X6+7=61 + 12 + 6 =54+6+82 =27+3 4 =3672 + 9 =2X3X

27、3=600+500 =800-700 =830+ 130 =250-90 =496+ 146+254 =500+256+200 =507+ 127-207=971-296+25 =910+222- 110 =226+952-252 =899-37- 363 =8X2+6X2=19X6 =4X 9-2X 9 =19X5 =969X9 =7X2+2=33+ 15+3 =64+8 + 45 =6+22=6542+6 =2X2X5=100 + 5+4 =800+200 =300-200 =160+610 =600-20=143+ 12+388 =347+275+53 =772+208-372 =911

28、-300+89 =997 + 485-797 = 499+585-385 =956- 121- 179 =8X 7+7X 7 =16X 8 =3X 3-2X 3 =20X 4 =77-8X6 =3X 9+7=21 + 10-5 =27-9+16 =36+45 =84- 10-2 =2X2X3=32+2 + 4 =600+400 =1000-600 =830+ 120 =670- 100 =395+ 175+ 125 =238+ 125+ 162 =899+ 112-899 =834-391 + 57 =918+ 177-618 =406+647-547 =988-83-317 =5X 6+3X

29、 6 =21 X4 =4X 8-2X 8 =13X3 =35-3X6 =3X2+9=38+28-7 =24-6 + 43 =24+8 2 =2821 + 7 =4X4X3=12+2 + 2 =900+900 =400-300 =680+210 =230- 10=486+84+316 =690+280+ 10 =737-273+36 =931 + 433-431 =878-400+22 =385+ 123- 185 =179+629-229 =668-76-524 =3X4+2X4=19X 2 =7X 3-4X 3 =29 X 3 =479x5 =2X2+8=79+81+9 =10+2+80 =

30、30+63 =2821+3 =4X5X3=32+4 + 4 =500+300 =700-300 =330+ 120 =920-210 =426+200+300 =477+211 + 223 =235+413- 135 =198+386- 198 = 274+517- 117= 873 148-252 = 3X2+5X2=29X5 =3X62X6=10X9 =38 4X7 =9X3+8=17+9+3 =10+2+62 =64+8 4 =7630+5 =4X2X3=60+ 5 + 4 =400+ 100 =500-400 =110+350 =820-680 =451 + 102+398 = 682

31、+ 147+ 18 =441+ 190-141 = 683 198+ 15 = 397+277-297=281 + 127- 127 = 958-59-441 =3X9+6X9=15X 3 =6X93x9=16X 9 =655X3 =7X 5+4=24+45 + 9 =45+9+34 =63+7 4 =26- 18 + 3 =2X4X6=48+4 + 4 =600+300 =400 100 =540+240 =530 100 =302+ 113+287 =213+ 121 + 287 =283+225- 183 =767-497+30 =762+367-362 =289+533-233 =92

32、9-71-529 =9X4+4X4=23X2 =7X42X4=25X3 =846X8 =5X2+5= 19+42+6 =72+8+68 =164 4 =4036+9 =4X5X3=36+4+3 =800+300 =200- 100 =670+ 190 =560- 110 = 228+52+448 =475+208+225 =628+203-528 =654-469+ 15 =555+321-355 =439+346- 146 =681-93-207 =4X6+2X6=28X 3 =7X 9-4X 9 =16X4 =792X9 =4X8+5=89+8 + 2 =32+8+65 =28+41 =9

33、1 35+7 =2X3X5=27+3 + 3 =700+800 =800-400 =800+ 170 =760-330 =252+76+ 324 =620+ 145+80 =422+ 170-322 =619-333+ 14 =356+499-356 = 128+338-338 =709-74- 326 =8X2+3X2=18X4 =9X65X6=15X 8 =249X2 = 7X3+4= 57+ 10+5 = 10+2+76 = 24+81 =13- 16+4 = 4X3X6= 16+2 + 4 = 800+ 700 = 800-300 = 320+ 130 =580 10=412+ 171

34、+129 = 564+279+36 =268+249- 168 = 666-585+ 19 =486+269-286 = 197+796-796 = 621- 141- 159 = 6X3+9X3= 13X 7 =3X62X6=14X 9 = 587X3 = 8X3+9=60+32 + 4 =21 + 3+62 =63+78 =41 12 + 2 =3X3X3=12+2 + 3 =100+900 =500 100 =340+630 =620- 110 =123+ 19+381 =646+ 104+54 =314+393-314 =954 183+29 =321 + 333-321 = 218+

35、789-489 =741- 197-303 =8X 9+2X 9 =17X 9 =7X66X6=14X 9 =747X9 =4X5+6=35+42 + 7 =6+2+31 =16+2 4 =9230+6 =5X5X4=32 + 4 + 2 =700+200 =200- 100 =630+210 =790-420 =263+81 + 219 =488+201+ 12 = 393+272-393= 613-590+77 =653+398-553 = 318+201-101 = 759-20-480 =2X2+2X2=23X6 =7X 9-4X 9 =24X 3 =443X9 =4X4+8=82+2

36、4+8 =48+6+88 =18+3 6 =4324+8 =5X5X6=36+4+3 =400+ 100 =300-200 =750+210 =600-40=423+ 197+ 103 =231 + 233+ 169 =355+ 183-255 =754 170+ 16 =171 + 227- 171 = 112+230-230 =883 10-390 =4X3+3X3=22X 8 =9X 7-4X 7 =18X 8 =334X7 =4X3+9=14+63+7 =18+9+11 =40+81 =5472 + 9 =2X3X4=40 + 5 + 4 =500+ 700 =800-500 =330

37、+ 160 =170-80=263+59+ 341 =413+ 141 + 87 =694+270-494=825-455+30 =476+137-376 =415+568-268 =895-97-403 =6X6+6X6=15X2 =8X85X8=24X 5 =702X9 =8X3+7=90+ 16+8 =40+5+54 =24+6 2 =91 27+3 =3X5X4=32 + 4 + 2 =400+500 =400 100 =570+300 =110-50=189+ 161 + 339 = 322+233+278 =148+ 142 148 = 918-398+80 =660+ 151-2

38、60 = 467+ 112- 112 = 937 164-236 =7X 5+2X 5 =26 X 8 =5X24X2=29X 2 =582X7 =5X 3+7=65+45 + 5 =18+2 + 42 =18+9 2 =6332 + 4 =3X3X3=36+3 + 4 =800+200 =600-300 =360+510 =110-30=454+31 + 269 = 297+249+103 =404+474-204 = 965-200+35 =282+354- 182 = 500+311- 111 = 667- 12-288 =3X2+9X2=22X2 =7X 9 3X 9 =24X6 =8

39、96X6 =3X5+8=55+36+4 =72+9+54 =18+91 =6048+6 =2X2X3=20+5 + 2 =800+600 =600-200 =360+590 =800-90=327+28+272 =321 + 200+79 =340+301-240 =935-380+45 =146+ 107 146 = 288+756-756 = 653 156-244 =7X4+7X4=24 X 5 =7X22X2=10X 5 =836X9 =3X8+5=81 + 56 + 7 =24+4+77 =8+23=71 36+4 =2X2X2=24 + 3 + 4 =700+300 =800-40

40、0 =750+ 180 =910-400 =478+ 179+221 =506+ 150+94 =364+227-264 =810-484+74 =602+387- 102 =263+328- 128 =668 170-430 =8X2+5X2=28X 7 =8X 75X 7 =28X 7 =657X6 =6X4+3=75+ 16+2 =42+6+62 =14+27 =31 28+4 =4X3X3=27+3+3 =200+900 =1000-700 =210+370=320-300 =104+ 161 + 339 =666+ 110+34 =818+452-618 =981-292+ 11 =

41、734+ 195-634 =120+739-339 =891- 158-342 =6X 7+2X 7 =17X 8 =4X 5-2X 5 =19X 6 =757x4 =9X 7+6=15+ 16 + 8 =28+4+16 =64+8 3 =9324 + 8 =3X3X2=12+3 + 2 =400+200 =700-200 =670+330 =710-500 =274+ 160+240 =123+299+277 =265+ 111-265 = 871-595+24 =365+204-265 =286+ 188- 188 =686 123 177 = 4X2+3X2=18X4 =4X42X4=2

42、0X4 =855X7 =5X2+9=67+21 + 3 =24+3+50 =32 + 45 =1721 + 3 =2X2X3=36+3 + 4 =700+700 =200- 100 =710+ 100 =590-200 = 126+42+258 =462+ 173+ 138 = 970+211-970= 788- 199+ 11 =967+ 185-967 = 426+390- 190 = 992 174 126=8X4+6X4=21 X 8 =7X 5 6X 5 =42+7+76 =7318+2 =81 3X6 = 8X2+6=84+ 15 + 5 =36+4 + 47 = 45+5 6 =

43、1356+7 =3X5X5=16+4 + 2 = 500+900 =1000-500 =590+340 = 920-670=172+21 + 279 = 277+145+223 = 259+489- 159 = 816-393+77 = 129+314- 129 =296+279- 179 = 626 103 197 = 2X 8+2X 8 =16X 3 =5X24X2=26X 6 =70-2X 8 =17+4 + 2 =20+4+85 =42+7 4 =54- 16+4 =3X2X3=27+3+3 =100+ 700 =300 100 =110+540 =240 190 =283+ 128+

44、272=475+214+25 =467+ 144-267 =759-387 + 28 =175+367- 175 =104+355-355 =669-21-479 =8X 7+9X 7 =10X6 =7X 53X 5 =19X3 =336X5 =5X3+6=15+ 16+8 =81 + 98 =8224 + 3 =5X5X2=30+5 + 2 =500+200 =300 100 =740+ 100 =400-200 = 186+50+450 = 312+241+ 188 =401 + 460-401 = 886-298+ 12 =641 + 427-241 = 141 + 725-525 =

45、609 180-420 = 8X4+2X4=21 x 8 =5X 7-4X 7 =23 X 3 =71 7X5 =5X3+3=31 + 35+7 =4 + 2 + 64=15+53 =5X4X6=24+ 4 + 3 =100+300 =600-400 =240+500 =630-570=122+96+204 =265+ 126+ 135 =470+243-270 =945-458+ 13 =554+400- 154 = 340+309-309 = 965 145-355 =3X4+4X4=15X3 =4X 8-2X 8 =13X9 =456X3 =7X 7+2 =25+42+7 =32 + 4

46、+84 =20+ 4 4 =7715+5 =4X5X2=18+2 + 3 =700-400 =700+300 =800-500 =280+320 =550-480 =174+ 127+ 173 =564+ 160+36 =266+ 190-266 =615-231+16 =237+243-237 = 415+773-473 =928-200-400 =5X9+3X9=16X 2 =5X 5-3X 5 =28X 9 =61 3X4 =3X3+8=64+ 15 + 5 =18+9+73 =16+8 2 =3540 + 5 =4X4X2=48+3 + 4 =600+300 =470+400 =390

47、-220 =105+ 138+262 =602+ 108+98 =688+ 187-388 =748 162+ 14 =451 + 287-451 =321 + 646-246 =665 198-402 =4X 5 + 4X 5 =23 X 7 =9X95x9=23X4 =546X7 =8X8+4=17+30+5 =16+4+23 =45+5 2 =19- 16+8 =2X5X3=24 + 2 + 4 =100+300 =600-200 =500+470=230-70=209+38+262 =449+226+51 =584+ 162-484 =978 192+ 14 =306+324-206

48、=242+645-645 =863 141-259 = 6X6+7X6=27 X 5 =6X33X3=23 X 9 =497X6 =5X2+8=86+4 + 2 =36+6+16 =21 + 73 =61 42 + 6 =4X4X4=36+3 + 4 =400+300 =300 100 =720+230 =170 100 =473+30+370 =226+ 170+274= 845+373-245 =674-485+ 11 =928+ 170-228 = 370+952-452 =615 10-290 =4X 8+5X 8 =26 X 7 =8X 5 2X 5 =16X 7 =653X7 =8

49、X4+2=21 + 64+8 =72+9+35 =15+31 =7224+3 =5X2X3=60- 3 + 4 =400+400 =500-400 =270+160 =640-290 =181+ 186+214 =474+182 + 26 =532+410-532 =685-296+ 11 =834+322- 134 =385+373-373 =880-25-575 =6X4+6X4=24 X 3 =9X4-2X4=29 X 8 =35-3X2 =5X 7+6=29+54 + 9 =12+6+75 =42+7 2 =4720 + 4 =2X2X6=75- 5+3 =200+400 =400-3

50、00 =440+210 =150-110 =173+90+410 =495+ 128+ 105 =702+ 194-302 =736-498+62 =178+349- 178 =158+998698 = 652- 166 434 = 9X 2 + 4X 2 = 16X2 =6X42X4=24X 3 =88-7X4 =4X4+9=37+45-9 =30-6+53 =30+5 2 =81-18-9 =5X2X5=60+ 5 + 4 =100+ 100 =900-500 =470+310 =540-60=118+33+467 =330+ 180+ 170 = 326+464326 =643-281 + 38 =185+476- 185= 170+650-450 =900-59-241 =588X3 =42+ 14