Simple calculation! 0.78 times 98 = 0.25 times 2.33 times 8 = 1.5 times 105= Simple calculation! 78 times 98= 0.25 by 2.33 by 8= 1.5 times 105= 0.3 by 2.5 by 0.4= 1.2 by 2.5 by 0.4 + 0.8 by 2.5= 4.8 times 0.25=

Simple calculation! 0.78 times 98 = 0.25 times 2.33 times 8 = 1.5 times 105= Simple calculation! 78 times 98= 0.25 by 2.33 by 8= 1.5 times 105= 0.3 by 2.5 by 0.4= 1.2 by 2.5 by 0.4 + 0.8 by 2.5= 4.8 times 0.25=

Using a calculator

A simple calculation of two 5 / 2 times 16 plus 33 times 0.4 plus 2 divided by 5 (3 / 5 plus 2.4 times 3 / 8) divided by 1 / 2
2 / 5 times 16 plus 33 times 0.4 plus 2 divided by 5
(3 / 5 plus 2.4 times 3 / 8) divided by 1 / 2

2/5x16+33x0.4+2/5=2/5x(16+33+1)=2/5x50=20
(3/5+2.4x3/8)/1/2=(3/5+9/10)x2=15/10 x2=3

Simple calculation: 12.5 times 4.1 times 8 times 0.2

Multiply 12.5 by 8 = 100
100 times 0.2 = 20
20 times 4.1 = 82
Final answer 82

How to calculate 5.5 × 4.4-44 × 0.33-0.44 × 22

The original formula is 5.5 * 4.4-44 * 0.33-0.44 * 22
=5.5*4.4-4.4*3.3-4.4*2.2
=4.4*（5.5-3.3-2.2）
=4.4*0
=0
(if the first factor of each term is expanded or reduced by several times, the other factor of the same term is reduced or expanded by several times.)