简单计算

=9×8

=72

25.25×0.65×4÷0.65

=25.25×4×(0.65÷0.65)

=(25+0.25)×4×1

=25×4+0.25×4

=100+1

=101

0.93×1.01

=0.93×(1+0.01)

=0.93×1+0.93×0.01

=0.93+0.0093

=0.9393

6.24-3.32-2.66

=6.24-(3.32+2.66)

=6.24-5.98

=6.24-(6-0.02)

=6.24-6+0.02

=0.24+0.02

=0.26

0.485×102-48.5

=0.485×(100+2)-0.485×100

=0.485×100+0.485×2-0.485×100

=0.485×2

=0.97

4.4+4.4×12+13×5.6

=4.4×(1+12)+13×5.6

=4.4×13+13×5.6

=13×(4.4+5.6)

=13×10

=130