Name
3–3
Keep On Counting
Count on to find the missing partner.
7+
3.
4+
5.
3+
8
9
10
5
6
7
4
5
6
7. Explain Your Thinking
2.
6+
4.
5+
6.
2+
When you count on
to find the total of 2 + 5, does it matter which
number you start with? Why?
7
8
9
6
7
8
3
4
5
Copyright © Houghton Mifflin Company. All rights reserved.
1.
Name
3–3
Keep On Counting
Count on to find the missing partner.
1
7+
2
3
3.
1
4+
2
3
5.
1
3+
2
3
8
9
10
5
6
7
4
5
6
2.
6+
1
2
3
4.
5+
1
2
3
6.
2+
1
2
3
7
8
9
6
7
8
3
4
5
7. Explain Your Thinking
When you count on
to find the total of 2 + 5, does it matter which
number you start with? Why?
Possible answer: I start with the greater number.
That way I have fewer numbers to count on.
Copyright © Houghton Mifflin Company. All rights reserved.
1.