Simple calculation of 66 times 35 plus 35 plus 33 times 55

Simple calculation of 66 times 35 plus 35 plus 33 times 55

66*35+35+33*55
=35*(66+1)+33*55
=35*67+33*(35+20)
=35*(67+33)+33*20
=3500+660
=4160

The simple operation of 6.66 × 1.2 + 3.33 × 7.6 is

6.66×1.2+3.33×7.6
=3.33×2×1.2+3.33×7.6
=3.33×(2.4+7.6)
=3.33×10
=33.3

Simple operation of 5 / 14 × 12 / 25 × 7 / 9 = ==
5 / 14 × 12 / 25 × 7 / 9 = simple operation

5/14×12/25×7/9
= 5/(2×7) × (2×2×3)/(5×5) × 7/(3×3)
= 1/1 × 2/5 × 1/3
= 2/15

How to calculate 7 out of 12 - (5 out of 12 + 1 out of 9)

7 of 12 -- (5 of 12 + 1 of 9) = 7 / 12 -- 5 / 12 -- 1 / 9
＝2/12--1/9
＝1/6--1/9
＝3/18--2/18
＝1/18.

Simple calculation of 1.2 × 9.9 + 0.12

=1.2x9.9+1.2x0.1=1.2x（9.9+0.1）=12

Simple calculation of 12.5 × 9.8 × 0.8

12.5×9.8×0.8
=12.5×0.8×9.8
=10×9.8
=98

12 + (- 25) + 25 + 23 = how to operate easily

=12+23+(25-25)
=35
I hope I can help you,

Simple calculation of 12-0.25

12÷0.25
=（12×4）÷（0.25×4）
=48÷1
=48

12 divided by 1.25?

12 divided by 1.25: 12 divided by 1.25 = 12 divided by 5 / 4 = 12 multiplied by 4 divided by 5 = 48 divided by 5 = 9.61.25 can be converted into 5 / 4 or 10 / 8, 12 divided by 5 / 4 or 10 / 8, integer calculation is more convenient. 12 * 4 / 5 = 48 / 5 = 9.6

How to use 89 times 99 plus 89

89*99+89=89*（99+1）=89*100=8900