Mathematics
Grade 1
15 min
Add and subtract tens
Add and subtract tens
Tutorial Preview
1
Adding groups of ten: 20 + 30
2
Subtracting groups of ten: 50 - 20
3
Adding tens to a number: 24 + 30
Sample Practice Questions
Easy
What is 10 + 20?
0.30
1.10
2.20
3.40
Easy
What is 30 - 10?
0.10
1.20
2.30
3.40
Easy
What is 15 + 10?
0.15
1.25
2.35
3.5
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