| 计算。 | ||||||
|
| (1)762﹣357+438﹣243 =(762+438)﹣(357+243) =1200﹣600 =600 |
(2)( =( = =18 |
| (3)(200.6×365+2006×63.5)×40% =(200.6×365+200.6×635)×40% =(365+635)×200.6×40% =1000×200.6×0.4 =200600×0.4 =80240 |
(4) =(4+ =4×5+ =60 |
| (5)(0.5+ =(0.5+ =(0.5+2.5+ =(3 =1 |
(6) =(1﹣ =1﹣ =1﹣ = |
科目:小学数学 来源: 题型:
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