Let's solve each problem step by step and explain the reasoning behind each answer.
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1) 3 more than 7 is _____
"More than" means
addition.
So, 7 + 3 =
10
✔ Answer: 10
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2) 12 more than 3 is _____
Again, "more than" means add.
3 + 12 =
15
✔ Answer: 15
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3) 5 less than 11 is _____
"Less than" means
subtraction.
11 - 5 =
6
✔ Answer: 6
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4) 7 less than 20 is _____
Subtract 7 from 20:
20 - 7 =
13
✔ Answer: 13
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5) 9 less than _____ is 2
We need to find a number such that when we subtract 9 from it, we get 2.
So:
x - 9 = 2 → x = 2 + 9 =
11
✔ Answer: 11
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6) 15 less than _____ is 8
x - 15 = 8 → x = 8 + 15 =
23
✔ Answer: 23
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7) _____ more than 15 is 18
We need to find how much more than 15 gives us 18.
So:
15 + x = 18 → x = 18 - 15 =
3
✔ Answer: 3
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8) _____ more than 9 is 15
9 + x = 15 → x = 15 - 9 =
6
✔ Answer: 6
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9) _____ less than 17 is 5
We want a number such that when we subtract it from 17, we get 5.
So:
17 - x = 5 → x = 17 - 5 =
12
✔ Answer: 12
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10) _____ less than 9 is 3
9 - x = 3 → x = 9 - 3 =
6
✔ Answer: 6
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✔ Final Answers:
1)
10
2)
15
3)
6
4)
13
5)
11
6)
23
7)
3
8)
6
9)
12
10)
6
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Let me know if you'd like this formatted as a completed worksheet!
Parent Tip: Review the logic above to help your child master the concept of more than and less than worksheet.
