题目内容
脱式计算。(能简算的要简算)
|
| (1) 4.5×10.2 =4.5×(10+0.2) =4.5×10+4.5×0.2 =45+0.9 =45.9 |
(2) (5.6+0.28)÷0.7 =5.6÷0.7+0.28÷0.7 =8+0.4 =8.4 |
| (3) 51.6÷[(5.4-3.25)×0.8] =51.6÷[2.15×0.8] =51.6÷1.72 =30 |
(4) 1.8×3.76+1.24×1.8 +0.5 =1.8×(3.76+1.24)+0.5 =1.8×5+0.5 =9.5 |
练习册系列答案
相关题目