Question

235×0.043+2点35×7.2-23点5×0.15用简便计算怎么做？

Answer 1

计算坦友局陆如下让腊槐:
235×0.043+2点35×7.2-23点5×0.15
=235×0.043+2.35×7.2-23.5×0.15
=2.35×4.3+2.35×7.2-2.35×1.5
=2.35×(4.3+7.2-1.5)
=2.35×10
=23.5

Answer 2

解:简便计散正宴算过程冲银如清圆下
235×0.043+2.35×7.2-23.5×0.15
＝235×0.043+235×0.072-235×0.015
＝235×（0.043+0.072-0.015）
＝235×0.1
＝23.5

Answer 3

本题可巧妙利用提没余游取公因式枯销毁樱

235×0.043+2.35×7.2-23.5×0.15

=235÷100×0.043×100+2.35×7.2-23.5÷10×0.15×10

=2.35×（0.043×100）+2.35×7.2-2.35×(0.15×10)

=2.35×4.3+2.35×7.2-2.35×1.5

=2.35×（4.3+7.2-1.5)

=2.35×10

=23.5