Page 63 - Start Up Mathematics_4

Multiplication Tables from 16 to 20

Table of 16 Table of 17 Table of 18 Table of 19 Table of 20
16 × 1 = 16 17 × 1 = 17 18 × 1 = 18 19 × 1 = 19 20 × 1 = 20

16 × 2 = 32 17 × 2 = 34 18 × 2 = 36 19 × 2 = 38 20 × 2 = 40
16 × 3 = 48 17 × 3 = 51 18 × 3 = 54 19 × 3 = 57 20 × 3 = 60

16 × 4 = 64 17 × 4 = 68 18 × 4 = 72 19 × 4 = 76 20 × 4 = 80
16 × 5 = 80 17 × 5 = 85 18 × 5 = 90 19 × 5 = 95 20 × 5 = 100
16 × 6 = 96 17 × 6 = 102 18 × 6 = 108 19 × 6 = 114 20 × 6 = 120

16 × 7 = 112 17 × 7 = 119 18 × 7 = 126 19 × 7 = 133 20 × 7 = 140
16 × 8 = 128 17 × 8 = 136 18 × 8 = 144 19 × 8 = 152 20 × 8 = 160

16 × 9 = 144 17 × 9 = 153 18 × 9 = 162 19 × 9 = 171 20 × 9 = 180
16 × 10 = 160 17 × 10 = 170 18 × 10 = 180 19 × 10 = 190 20 × 10 = 200

EXERCISE 5.1

Complete the following grid. Use the tables learnt.

X 1 2 3 4 5 6 7 8 9 10

15 60

16 112

17 34

18 162

19 57

20 100

Colour the even numbers in the grid PINK and odd numbers Blue. Use pencil colours only.
Count and write their numbers in the boxes given below. Then, in the circle, put the correct
sign >, < or =.

Number of PINK boxes → ← Number of BLUE boxes

Properties of Multiplication

1. Two numbers can be multiplied in any order.
For example, 52 × 9 = 468 = 9 × 52

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