Remember: Find two numbers that make ten and add them first. The order does not change the total.
Add three groups
Look for two numbers that make ten. Add them first.
1
Add all three groups. How many apples are there in all?
2
Which two groups make ten?
the 2 and the 8the 8 and the 3the 2 and the 3
3
How many stars in all? Find two groups that make ten first.
4
1 + 8 + 2 = 10 +
5
Count the three groups of balloons. How many are there in all?
6
3 + 7 + 4 = 14.
TrueFalse
7
8 + 5 + 2 and 2 + 8 + 5 make different totals.
TrueFalse
8
Mia picks 7 red apples, 3 green apples and 6 yellow apples. How many apples does Mia pick?
9
6 + 8 + 2 = 10 +
10
Which two numbers do you add first in 4 + 6 + 3?
6 and 34 and 34 and 6
11
Join each sum to its total.
12 + 8 + 3
24 + 6 + 5
39 + 1 + 2
A13
B12
C15
12
= 3 + 5 + 7
13
Sam has 3 red cars, 3 blue cars and 5 green cars. How many cars does Sam have?
14
Write three numbers that add up to 10. Show how you know.
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