Question

2.4×7.6+0.76×65+7.6+0.76如何简算？

Answer 1

2.4×7.6+0.76×65+7.6+0.76 将0.76 x 65中65 拆写成6.5x10,
+0.76 中的0.76 拆分成7.6x0.1,然后利用乘法分配律来进行简便运算，具体步骤如下
2.4x7.6+0.76x10x6.5+7.6x1+7.6x0.1
=7.6x(2.4+6.5+1+0.1)
=7.6x(8.9+1+0.1)
=7.6x(9.9+0.1)
=7.6x10
=76

Answer 2

简便计算是直接提取公约7.6得
2.4x7.6+0.76x65+7.6+0.76
=7.6x(2.4+6.5+1+0.1)
=7.6x10
=76

加油😊！