4.9×6.4+14×0.36-6.4×3.5等于几?

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/06 16:46:09
4.9×6.4+14×0.36-6.4×3.5等于几?

4.9×6.4+14×0.36-6.4×3.5等于几?
4.9×6.4+14×0.36-6.4×3.5等于几?

4.9×6.4+14×0.36-6.4×3.5等于几?
4.9×6.4+14×0.36-6.4×3.5
=(4.9-3.5)×6.4+14×0.36
=1.4×6.4+14×0.36
=1.4×(6.4+3.6)
=1.4×10
=14

14

0

4.9×6.4+14×0.36-6.4×3.5
=6.4×(4.9-3.5)+14×0.36
=6.4×1.4+14×0.36
=1.4×(6.4+3.6)
=1.4×10
=14

(4.9 × 6.4) + (14 × 0.36) - (6.4 × 3.5) = 14

这是一道有规律的算式题,先观察后计算即可。
先算4.9×6.4-6.4×3.5=6.4×(4.9-3.5)=6.4×1.4;
然后可以把14×0.36转化为1.4×3.6;
最后6.4×1.4+1.4×3.6=1.4×(6.4+3.6)=14.

投三楼一票

13.97

4.9×6.4+14×0.36-6.4×3.5
=(4.9-3.5)×6.4+14×0.36
=1.4×6.4+14×0.36
=1.4×(6.4+3.6)
=1.4×10
=14

4.9×6.4+14×0.36-6.4×3.5
=6.4×(4.9-3.5)+14×0.36
=6.4×1.4+14×0.36

全部展开

4.9×6.4+14×0.36-6.4×3.5
=(4.9-3.5)×6.4+14×0.36
=1.4×6.4+14×0.36
=1.4×(6.4+3.6)
=1.4×10
=14

4.9×6.4+14×0.36-6.4×3.5
=6.4×(4.9-3.5)+14×0.36
=6.4×1.4+14×0.36
=1.4×(6.4+3.6)
=1.4×10
=14
(4.9 × 6.4) + (14 × 0.36) - (6.4 × 3.5) =14
这是一道有规律的算式题,先观察后计算即可。
先算4.9×6.4-6.4×3.5=6.4×(4.9-3.5)=6.4×1.4;
然后可以把14×0.36转化为1.4×3.6;
最后6.4×1.4+1.4×3.6=1.4×(6.4+3.6)=14.

收起