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\ 11-Sep-2024 Surender Prajapati Proof-3 Reader’s Sign _______________________ Date __________

forwArd ANd bACkwArd CouNtiNg

Look at the following number strip.

Left Right

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

Let us count the numbers left to right starting from 4.

4 5 6 7 8 9 10

Such type of counting is called the forward counting.

Now, let us count the numbers right to left starting from 15.

15 14 13 12 11 10 9

Such type of counting is called the backward counting.

Practice time 1f

1. Count forward and write the missing numbers.

(a) 3 4 5 9

(b) 6 7 8 20

(c) 4 5 11 16

2. Count backward and write the missing numbers.

(a) 19 15 10

(b) 17 12

(c) 17 12 6

Brain Sizzlers

Sonam starts from 10 and counts forward 3. What number is she at? _______

18 Mathematics-1