四年級(jí)數(shù)學(xué)未知數(shù)計(jì)算思維訓(xùn)練1071

四年級(jí)數(shù)學(xué)未知數(shù)計(jì)算思維訓(xùn)練2024/08/19姓名：__________ 座號(hào)：__________ 情況：__________(27-1)×X=1300(21-3)×X=468(36+33)×X=2070(40-44)×X=-188(27+16)×X=344(28+19)×X=705(50+42)×X=3680(21-49)×X=-1008(35-9)×X=1040(42-20)×X=220(21+26)×X=658(37+24)×X=2562(45+8)×X=742(43+16)×X=1888(12-16)×X=-104(39+28)×X=1943(21-24)×X=-69(34+19)×X=795(10+42)×X=624(1-33)×X=-1216(31+21)×X=2132(3-15)×X=-120(40+38)×X=2652(19+27)×X=2208(45+40)×X=3825(14+14)×X=1372(24+44)×X=3332(3-47)×X=-2200(41+1)×X=1218(49-30)×X=171(21-49)×X=-140(34-17)×X=272(44-19)×X=1050(27-36)×X=-324(7-1)×X=126(17+19)×X=504(33+37)×X=3010(31+14)×X=2205(9+37)×X=1564四年級(jí)數(shù)學(xué)未知數(shù)計(jì)算思維訓(xùn)練(答案)(27-1)×X=1300X=50(21-3)×X=468X=26(36+33)×X=2070X=30(40-44)×X=-188X=47(27+16)×X=344X=8(28+19)×X=705X=15(50+42)×X=3680X=40(21-49)×X=-1008X=36(35-9)×X=1040X=40(42-20)×X=220X=10(21+26)×X=658X=14(37+24)×X=2562X=42(45+8)×X=742X=14(43+16)×X=1888X=32(12-16)×X=-104X=26(39+28)×X=1943X=29(21-24)×X=-69X=23(34+19)×X=795X=15(10+42)×X=624X=12(1-33)×X=-1216X=38(31+21)×X=2132X=41(3-15)×X=-120X=10(40+38)×X=2652X=34(19+27)×X=2208X=48(45+40)×X=3825X=45(14+14)×X=1372X=49(24+44)×X=3332X=49(3-47)×X=-2200X=50(41+1)×X=1218X=29(49-30)×X=171X=9(21-49)×X=-140X=5(34-17)×X=272X=16(44-19)×X=1050X=42(27-36)×X=-324X=36(7-1)×X=126X=21(17+19)×