1.25×0.25×8×40用简便方法计算 5.7×9.9 0.34×10.11.25×0.25×8×40用简便方法计算5.7×9.9 0.34×10.1 12.5×(10+0.8)44.5×3.7+6.3×44.5
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/06 16:12:28
![1.25×0.25×8×40用简便方法计算 5.7×9.9 0.34×10.11.25×0.25×8×40用简便方法计算5.7×9.9 0.34×10.1 12.5×(10+0.8)44.5×3.7+6.3×44.5](/uploads/image/z/240758-62-8.jpg?t=1.25%C3%970.25%C3%978%C3%9740%E7%94%A8%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%AE%A1%E7%AE%97+5.7%C3%979.9+0.34%C3%9710.11.25%C3%970.25%C3%978%C3%9740%E7%94%A8%E7%AE%80%E4%BE%BF%E6%96%B9%E6%B3%95%E8%AE%A1%E7%AE%975.7%C3%979.9+0.34%C3%9710.1+12.5%C3%97%2810%2B0.8%2944.5%C3%973.7%2B6.3%C3%9744.5)
1.25×0.25×8×40用简便方法计算 5.7×9.9 0.34×10.11.25×0.25×8×40用简便方法计算5.7×9.9 0.34×10.1 12.5×(10+0.8)44.5×3.7+6.3×44.5
1.25×0.25×8×40用简便方法计算 5.7×9.9 0.34×10.1
1.25×0.25×8×40用简便方法计算
5.7×9.9 0.34×10.1 12.5×(10+0.8)
44.5×3.7+6.3×44.5
1.25×0.25×8×40用简便方法计算 5.7×9.9 0.34×10.11.25×0.25×8×40用简便方法计算5.7×9.9 0.34×10.1 12.5×(10+0.8)44.5×3.7+6.3×44.5
1.25×0.25×8×40
=(1.25×8)×(0.25×40)
=10×10
=100
5.7×9.9
=5.7×(10-0.1)
=5.7×10-5.7×0.1
=57-0.57
=56.43
0.34×10.1
=0.34×(10+0.1)
=0.34×10+0.34×0.1
=3.4+0.034
=3.434
12.5×(10+0.8)
=12.5×10+12.5×0.8
=125+10
=135
44.5×3.7+6.3×44.5
=44.5×(3.7+6.3)
=44.5×10
=445
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