A simple calculation of 640 divided by (16 divided by 4)

A simple calculation of 640 divided by (16 divided by 4)

640 divided by (16 divided by 4) = 640 ／ (16 ／ 4) = 640 ／ 16 × 4 (remove bracket and change sign) = 160

Simple calculation of 8.44 * 0.25

8.44×1/4=8.44÷4=2.11

Simple calculation of 3300 △ 25 △ 44

3300÷（25×44）＝3300÷1100＝3

Simple calculation of 0.25 times 4.44
There is also a simple calculation of 0.56 times 1.25 times 3
Simple calculation of 8.88 times 1.25
Simple calculation of 0.98 times 7.4
Simple calculation of 12.74 times 7.4
It is easy to calculate 10.2 times 7.4
Fast

0.25*4.44
=0,25*4+0.25*0.4+0.25*0.04
=1+0.1+0.01
=1.11
0.56*1.25*3
=(0.8*1.25)*(0.7*3)
=1*2.1=2.1