Unit 8 – Add 2-digit numbers
Add tens Start Thinking
2 tens add 5 tens is 7 tens.
2 ones add 5 ones is 7 ones.
If you can add ones, you can add tens!
7
70
2 + 5 = ? 20 + 50 = ? 5 + 2 = ? 50 + 20 = ?
2
5
20
50
7
70
5
2
50
20
Complete these additions: 1 + 5 = ?
10 + 50 = ?
50 + 10 = ?
2 + 5 = ?
20 + 50 = ?
50 + 20 = ?
3 + 5 = ?
30 + 50 = ?
50 + 30 = ?
4 + 5 = ?
40 + 50 = ?
50 + 40 = ?
107
SK_G2_SB_08_104-117.indd 107
01/12/2021 13:56
Made with FlippingBook Learn more on our blog