脱式计算(能简算的要简算)17.64÷4.9+6.73 &n...
答案:1 悬赏:30 手机版
解决时间 2021-01-17 16:00
- 提问者网友:雪舞兮
- 2021-01-17 04:43
脱式计算(能简算的要简算)17.64÷4.9+6.73 &n...
最佳答案
- 五星知识达人网友:荒野風
- 2021-01-17 05:57
(1)17.64÷4.9+6.73
=3.6+6.73
=10.33
(2)5.6×13.9+0.44×139
=0.56×139+0.44×139
=(0.56+0.44)×139
=1×139
=139
(3)48×1.02÷3.4
=48.96÷3.4
=14.4
(4)0.25×12.5×320
=0.25×12.5×8×40
=(0.25×40)×(12.5×8)
=10×100
=1000
=3.6+6.73
=10.33
(2)5.6×13.9+0.44×139
=0.56×139+0.44×139
=(0.56+0.44)×139
=1×139
=139
(3)48×1.02÷3.4
=48.96÷3.4
=14.4
(4)0.25×12.5×320
=0.25×12.5×8×40
=(0.25×40)×(12.5×8)
=10×100
=1000
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