Question

11.2×9.8+112×0.08简便运算怎么算？

Answer 1

11.2×9.8+112×0.08
=112×0.98+112×0.08
=112×（0.98+0.08）
=112×1.06
=112×（1+0.06）
=112+6.72
=118.72

Answer 2

11.2×9.8+112×0.08
有两种简便算法。
方法一:~
11.2×9.8+11.2×10×0.08
=11.2×(9.8+0.8)
=11.2×10.6
=11.2×(10+0.6)
=112+6.72
=118.72
方法二:
=11.2×10×0.98+112×0.08
=112×(0.98+0.08)
=112×1.06
=112(1+0.06)
=112+6.72
=118.72
望采纳，谢谢！

Answer 3

11.2×9.8+112×0.08
=112×0.98+112×0.08
=112×（0.98+0.08）
=112×1.06
=（100+10+2）×1.06
=100×1.06+10×1.06+2×1.06
=106+10.6+2.12
=106+10+2+0.6+0.12
=118.72

Answer 4

原式=11.2×9.8+11.2×0.8
=11.2×(9.8+0.8)
=11.2×10.6
=(11+0.2)×(10+0.6)
=11×10+11×0.6+0.2×10+0.2×0.6
=110+6.6+2+0.12
=118.72

Answer 5

先将11.2化成112x0.1，再利用乘法分配律进行计算，原式=112x0.1x9.8+112x0.08
=112x(0.98+0.08)
=112x1.06
=(100+10+2)x1.06
=100x1.06+10x1.06+2x1.06
=106+10.6+2.12
=116.6+2.12
=118.72