Question

4.87*0.36+48.7*0.054+0.487简便运算 99.9*9.9简便运算 99.99

4.87*0.36+48.7*0.054+0.487简便运算
99.9*9.9简便运算
99.99*99.99简便运算
0.1*0.2*0.3*⋯⋯*0.9简便运算
以及图下

Answer 1

Answer 2

4.87×0.36+48.7×0.054+0.487
=4.87×(0.36+0.54+0.1)
=4.87×1
=4.87