Addition and subtraction · Ages 6–7
Adding and subtracting tens worksheet
Part of: Two-digit addition and subtraction
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Adding and subtracting tens worksheet
Addition and subtraction · Ages 6–7
Numsprite
numsprite.com
Name:Date:Score:／48
Write each answer in the space. For word problems, show your working and write a sentence answer.
Part A: Working out and filling in (2 marks each)
1.80 − 20
Answer:
2.44 + 40
Answer:
3.42 + 40
Answer:
4.49 − 30
Answer:
5.12 + 30
Answer:
6.45 − 10
Answer:
7.48 − 20
Answer:
8.29 + 60
Answer:
9.52 + 20
Answer:
10.30 − 10
Answer:
11.82 − 10
Answer:
12.40 + 20
Answer:
Part B: Word problems (4 marks each)
13.A reading corner has 43 books. Pupils borrow 20 of them. How many books are left in the reading corner?
Working:
Answer:
14.Ka-lok has $20. Dad gives him $50. How many dollars does he have now?
Working:
Answer:
15.May is 9 years old. Grandma is 60 years older than her. How old is Grandma?
Working:
Answer:
16.Ka-lok is 8 years old. Grandma is 50 years older than him. How old is Grandma?
Working:
Answer:
17.A reading corner has 31 books. Pupils borrow 30 of them. How many books are left in the reading corner?
Working:
Answer:
18.Ka-lok has $81. Dad gives him $10. How many dollars does he have now?
Working:
Answer:
Show the answers and working
Adding and subtracting tens worksheet: Answers and working
Part A: Working out and filling in
1. 80 − 20 = 60
The ones (0) stay put; just the tens: 8 − 2 = 6 → 60
2. 44 + 40 = 84
The ones (4) stay put; just the tens: 4 + 4 = 8 → 84
3. 42 + 40 = 82
The ones (2) stay put; just the tens: 4 + 4 = 8 → 82
4. 49 − 30 = 19
The ones (9) stay put; just the tens: 4 − 3 = 1 → 19
5. 12 + 30 = 42
The ones (2) stay put; just the tens: 1 + 3 = 4 → 42
6. 45 − 10 = 35
The ones (5) stay put; just the tens: 4 − 1 = 3 → 35
7. 48 − 20 = 28
The ones (8) stay put; just the tens: 4 − 2 = 2 → 28
8. 29 + 60 = 89
The ones (9) stay put; just the tens: 2 + 6 = 8 → 89
9. 52 + 20 = 72
The ones (2) stay put; just the tens: 5 + 2 = 7 → 72
10. 30 − 10 = 20
The ones (0) stay put; just the tens: 3 − 1 = 2 → 20
11. 82 − 10 = 72
The ones (2) stay put; just the tens: 8 − 1 = 7 → 72
12. 40 + 20 = 60
The ones (0) stay put; just the tens: 4 + 2 = 6 → 60
Part B: Word problems
Marking: 2 for the working, 1 for the answer, 1 for the sentence.
13. A reading corner has 43 books. Pupils borrow 20 of them. How many books are left in the reading corner? (Answer: 23 books)
43 − 20 = 23
14. Ka-lok has $20. Dad gives him $50. How many dollars does he have now? (Answer: 70 dollars)
20 + 50 = 70
15. May is 9 years old. Grandma is 60 years older than her. How old is Grandma? (Answer: 69 years old)
9 + 60 = 69
16. Ka-lok is 8 years old. Grandma is 50 years older than him. How old is Grandma? (Answer: 58 years old)
8 + 50 = 58
17. A reading corner has 31 books. Pupils borrow 30 of them. How many books are left in the reading corner? (Answer: 1 books)
31 − 30 = 1
18. Ka-lok has $81. Dad gives him $10. How many dollars does he have now? (Answer: 91 dollars)
81 + 10 = 91
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