Addition and subtraction · Ages 6–7

The equals sign means “the same as” worksheet

Part of: Addition and subtraction within 18

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Addition and subtraction · Ages 6–7

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Write each answer in the space. For word problems, show your working and write a sentence answer.

13.A balance has 4 red blocks and 7 blue blocks on the left and 3 yellow blocks on the right, all the same weight. How many more blocks must go on the right to make it balance?
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14.The red team and the blue team have the same number of players. The red team has 7 boys and 3 girls; the blue team has 4 boys. How many girls are on the blue team?
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15.May has 3 sweets and 8 chocolates; Chi-keung has 9 sweets. How many chocolates must Chi-keung have for the two to have the same number altogether?
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16.Tsz-hin has 8 stickers and gives 4 to Tsz-ching. Now Tsz-hin has as many as Ka-yan. How many stickers does Ka-yan have?
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17.A balance has 6 red blocks and 4 blue blocks on the left and 9 yellow blocks on the right, all the same weight. How many more blocks must go on the right to make it balance?
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18.Tsz-ching has 14 stickers and gives 2 to Ka-yee. Now Tsz-ching has as many as Tsz-hin. How many stickers does Tsz-hin have?
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Show the answers and working

The equals sign means “the same as” worksheet: Answers and working

1. 3
Work out the left side, 6 + 4, first. The right side has to come to the same.
The left is 10, so the right must be 10 too: □ + 7 = 10, so □ is 3.
2. 7
Work out the left side, 8 + 5, first. The right side has to come to the same.
The left is 13, so the right must be 13 too: □ + 6 = 13, so □ is 7.
3. 9
Work out the left side, 4 + 7, first. The right side has to come to the same.
The left is 11, so the right must be 11 too: □ + 2 = 11, so □ is 9.
4. 2
□ minus 1 has to leave 1. Think how many you need to start with; you can check by adding.
A single number can sit on the left: □ minus 1 must leave 1, so □ is 1 + 1 = 2.
5. 15
□ minus 9 has to leave 6. Think how many you need to start with; you can check by adding.
A single number can sit on the left: □ minus 9 must leave 6, so □ is 6 + 9 = 15.
6. 9, 7
Work out 5 + 5 first. Each equals sign means the same amount, so every part must come to that.
Each equals sign means the sides match, so all three parts are 10: 1 + 9 = 10 and 7 + 3 = 10.
7. 8, 9
Work out 6 + 7 first. Each equals sign means the same amount, so every part must come to that.
Each equals sign means the sides match, so all three parts are 13: 5 + 8 = 13 and 9 + 4 = 13.

8. True
Work out the right side, 4 − 1, first, then compare it with the 3 on the left.
The equals sign says both sides match: the right is 4 − 1 = 3; compare it with 3 on the left.
9. True
Work out the right side, 12 − 1, first, then compare it with the 11 on the left.
The equals sign says both sides match: the right is 12 − 1 = 11; compare it with 11 on the left.
10. False
Work out the left side, 3 + 5, and the right side, 7 + 2, separately, then compare.
The left is 3 + 5 = 8, the right 7 + 2 = 9. It is only true if both sides match.
11. A. 7 = 9 − 2
For each one, work out the left and the right of the equals sign separately and see which match.
9 − 2 is 7, the same as the 7 on the left, so 7 = 9 − 2 is true.
12. True
Work out the left side, 1 + 5, and the right side, 2 + 4, separately, then compare.
The left is 1 + 5 = 6, the right 2 + 4 = 6. It is only true if both sides match.

Marking: 2 for the working, 1 for the answer, 1 for the sentence.

13. 8 blocks
First work out how many blocks are on the left: 4 + 7. Balancing means both sides have the same.
Balancing means both sides match: 11 on the left, 3 on the right, so 8 more.
14. 6 girls
First work out how many are on the red team: 7 + 3. The blue team must have the same.
7 + 3 = 4 + □: red has 10, so blue needs 10 too, and 4 and 6 make 10.
15. 2 chocolates
First work out how many May has altogether: 3 + 8. Chi-keung must have the same.
3 + 8 = 9 + □: the left is 11, and 9 needs 2 more to make 11.
16. 4 stickers
First work out how many Tsz-hin has left after giving some away. Ka-yan has that many.
8 − 4 = □: Tsz-hin is left with 4, and Ka-yan has 4 too.
17. 1 block
First work out how many blocks are on the left: 6 + 4. Balancing means both sides have the same.
Balancing means both sides match: 10 on the left, 9 on the right, so 1 more.
18. 12 stickers
First work out how many Tsz-ching has left after giving some away. Tsz-hin has that many.
14 − 2 = □: Tsz-ching is left with 12, and Tsz-hin has 12 too.

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