Subtract ones by bridging Let’s Learn Together 1 4
4
10
14
910
14
14 − 4 = 10
So
14 − 5 = 9
4
1
4
20
24
1920
24
24 − 4 = 20
So
24 − 5 = ?
4
1
4
30
34
? ?
34
34 − 4 = 30
So
…
Let’s Try It Calculate these: 44 − 5 =
64 − 5 =
− 5 = 79
Let’s Practise Complete these subtractions. 1 15 − 5 = 10 15 − 6 =
25 − 6 =
35 − 6 =
14 − 4 = 10 14 − 6 =
24 − 6 =
44 − 6 =
2
13 − 3 = 10 13 −
= 8 23 −
= 18 53 −
= 48
3
180
SK_G2_SB_13_178-181.indd 180
01/12/2021 14:08
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