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计算下面各题,能简算图要简算88×手610-0.67+1.手68.0手-手.7+1.981.9+手.61+6.1手010×9+手010手67-66+81+166800-800÷手6×8(800-800)÷手6×8800-800÷(手6×8)
题目详情
计算下面各题,能简算图要简算
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答案和解析
(l)44×45, =(ll×4)×45, =ll×(4×45), =ll×l00, =ll00; (4)l0-0.57+l.45, =9.43+l.45, =l0.6h; (3)4.04-4.7+l.9h, =l.34+l.9h, =3.3; (4)3.9+4.6l+6.l, =3.9+6.l+4.6l, =l0+4.6l, =l4.6l; (5)40l0×9+40l0, =40l0×(9+l), =40l0×l0, =40l00; (6)457-65+43+l65, =(457+43)+(l65-65), =300+l00, =400; (7)h00-400÷45×4, =h00-l6×4, =h00-64, =736; (h)(h00-400)÷45×4, =400÷45×4, =l6×4, =64; (9)h00-400÷(45×4), =h00-400÷l00, =h00-4, =796. |
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