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Practice time 4b
Complete the following subtractions by counting backwards. One has been done
for you.
1. 11 – 5 = 6 11 10 9 8 7 6
1 2 3 4 5
2. 18 – 9 =
3. 17 – 5 =
4. 19 – 8 =
5. 14 – 6 =
6. 16 – 7 =
Challenge Question Critical Thinking
Ravi had 10 gas balloons. Some of them floated away, and now only 3 balloons
are left with him. How many balloons floated away?
Subtraction on a number Line
We can subtract by counting backwards on the number line. Let us subtract 6 from
14. We start with the bigger number 14 and jump 6 steps backwards. We reach 8.
6 5 4 3 2 1
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20
Thus, 14 – 6 = 8
Logical Thinking
Life Skills
Social Emotional Learning
Kunal bought a bunch of 18 bananas. When he was returning home,
a baby monkey caught his feet asking for food. Kunal gave him 6 bananas. The baby
monkey ran away happily with the bananas.
1. How many bananas were left with Kunal? 2. Do you like giving food to the hungry?
58 Mathematics-1

