Addition and subtraction · Ages 6–7
Add or subtract? worksheet
Part of: Addition and subtraction within 18
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Add or subtract? 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.Write the number sentence: the group on the left and the group on the right put together. + =
Fill in each blank
Answer:
2.Write the number sentence: the crossed-out ones were subtracted. − =
Fill in each blank
Answer:
3.Write the number sentence: how many more are in the top row than the bottom row? − =
Fill in each blank
Answer:
Part B: Choose, or true or false (2 marks each)
4.Which picture shows 10 − 4?
- A
- B
- C
- D
Choose the right picture
Answer:
5.Which number sentence matches the picture?
- A. 12 + 1 = 13
- B. 12 − 1 = 11
- C. 13 − 1 = 12
- D. 12 − 1 = 12
Choose the right answer
Answer:
6.Which picture shows 9 − 6?
- A
- B
- C
- D
Choose the right picture
Answer:
7.Which picture shows 8 − 5?
- A
- B
- C
- D
Choose the right picture
Answer:
8.Which picture shows 9 − 7?
- A
- B
- C
- D
Choose the right picture
Answer:
9.The top row has 5 more than the bottom row.
True or false?
Answer:
10.The top row has 2 more than the bottom row.
True or false?
Answer:
11.The top row has 4 more than the bottom row.
True or false?
Answer:
12.The top row has 9 more than the bottom row.
True or false?
Answer:
Part C: Word problems (4 marks each)
13.There are 14 cookies on a plate. Tsz-ching eats 5. How many are left on the plate?
Working:
Answer:
14.May has 9 pencils and Ka-yee has 2. How many pencils do they have altogether?
Working:
Answer:
15.Ka-lok skips 15 times and May skips 14 times. How many more times does Ka-lok skip than May?
Working:
Answer:
16.Chi-keung has 18 picture books and Ming has 10. How many fewer does Ming have than Chi-keung?
Working:
Answer:
17.A bus has 12 passengers. At the stop 3 more get on and nobody gets off. How many passengers are on the bus now?
Working:
Answer:
18.May has 3 red marbles, 7 blue marbles and 4 stickers. How many marbles does May have?
Working:
Answer:
Show the answers and working
Add or subtract? worksheet: Answers and working
Part A: Working out and filling in
1. 8, 8, 16
First count how many are on the left and how many on the right. Putting them together uses which sign?
8 on the left and 8 on the right, put together: 8 + 8 = 16.
2. 17, 9, 8
First count how many there are in all, crossed-out ones included, then count the crossed-out ones.
17 in all, 9 subtracted (crossed out): 17 − 9 = 8.
3. 9, 4, 5
Pair the two rows one to one, and first count how many are in each row.
Pair them one to one: 9 on top, 4 below; the extra ones are 9 − 4 = 5.
Part B: Choose, or true or false
4. A
10 − 4 means 10 in all with 4 subtracted. Look for 10 things with 4 of them crossed out.
The one with 4 of 10 crossed out (subtracted) is 10 − 4.
5. B. 12 − 1 = 11
First see what happens in the picture: crossed-out ones are subtracted. How many in all, and how many crossed out?
12 in all, 1 crossed out, 11 left: 12 − 1 = 11.
6. A
9 − 6 means 9 in all with 6 subtracted. Look for 9 things with 6 of them crossed out.
The one with 6 of 9 crossed out (subtracted) is 9 − 6.
7. C
8 − 5 means 8 in all with 5 subtracted. Look for 8 things with 5 of them crossed out.
The one with 5 of 8 crossed out (subtracted) is 8 − 5.
8. C
9 − 7 means 9 in all with 7 subtracted. Look for 9 things with 7 of them crossed out.
The one with 7 of 9 crossed out (subtracted) is 9 − 7.
9. True
Pair the two rows one to one and count how many in the top row have no partner.
Paired one to one, the top row has 5 extra: 7 − 2 = 5. Comparing means subtracting, not adding.
10. False
Pair the two rows one to one and count how many in the top row have no partner.
Paired one to one, the top row has 1 extra: 11 − 10 = 1. Comparing means subtracting, not adding.
11. True
Pair the two rows one to one and count how many in the top row have no partner.
Paired one to one, the top row has 4 extra: 8 − 4 = 4. Comparing means subtracting, not adding.
12. False
Pair the two rows one to one and count how many in the top row have no partner.
Paired one to one, the top row has 8 extra: 9 − 1 = 8. Comparing means subtracting, not adding.
Part C: Word problems
Marking: 2 for the working, 1 for the answer, 1 for the sentence.
13. 9 cookies
Eaten means subtracted. Taking 5 from 14: which kind of sum is that?
Eaten means subtracted: 14 − 5 = 9.
14. 11 pencils
The two lots of pencils are put together: is that adding or subtracting?
Putting together means adding: 9 + 2 = 11.
15. 1 time
This compares how many times each person skips. To find how many more, take the smaller from the bigger.
Comparing: the bigger number minus the smaller, 15 − 14 = 1.
16. 8 books
“How many fewer” compares two numbers too: take the smaller from the bigger.
“How many fewer” is comparing too: 18 − 10 = 8.
17. 15 passengers
More people get on, so there are more. Is that adding or subtracting?
More coming means adding: 12 + 3 = 15.
18. 10 marbles
First check what is asked: only the marbles. Do the stickers belong in the sum?
Only the marbles are asked about, so the 4 stickers aren't needed: red and blue together, 3 + 7 = 10.
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