Explanation

The larger numbers are multiples of the smaller numbers before and after.

... 4 20 5 30 6 42 7 56 ...

4 x 5 = 20

5 x 6 = 30

6 x 7 = 42

Explanation

3 × 3 = 9 - 1 = 8

8 × 3 = 24 - 2 = 22

22 × 3 = 66 - 3 = 63

63 × 3 = 189 - 4 = 189

Explanation

35×100÷5 = 700

5÷100× x= 35 5x÷100=35 5x=3500 x=3500÷5 x=700

AGM 07.5.23

Explanation

5 + 5 = 10 - 2 = 8

14 + 14 = 28 - 2 = 26

26 + 26 = 52 - 2 = 50

Explanation

The first 5 multiples of 5 are 5, 10, 15, 20, and 25. These can be written as:
5 × 1 = 5
5 × 2 = 10
5 × 3 = 15
5 × 4 = 20
5 × 5 = 25

5*6=30

Explanation

Complete the series ,80+160=240, 240+160=400, 400+160=560

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RY 31-12-2022

Explanation

the missing number in the number series: 3, 3, 5, 5, 7, 7, 9, 9

3,3,5,5,7,7,9,9,11,11,13,13,…….

ND11-4-2023

Explanation

50*200/100=100*75/100=75

Explanation

5 * 1=5

5 * 4=20

20 * 4=80

80 * 4=320

Similarly 

320 * 4=1280 and so on.

Explanation

180 - 55 = 155