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Cogito

Grade 1 Math · Chapter 1 · Lesson 3

Practice Worksheet

Number Bonds

Show two parts that make one whole.

7 problems · about 11 minutes · 1.OA.A.1, 1.OA.B.3

NameDate

Figure — use these to answer the problems

Tap an apple to move it to the other tray. Watch the bond change.

5

3

2

First tray

Tap one to move it across

Second tray

Tap one to move it back

Apples in all5

First tray3

Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

4 problems

From “Five and Some More”
A full five and 3 more. How many is that?
Answer
2
From “See It Fast”
Which picture shows 4, arranged so it is easy to see fast?
From “Five and Some More”
How many beads?
6 beads moved across in total.
How many6
Beads6
Answer
From “See It Fast”
How many dots? Try to see it without counting.
Answer

Warm Up

Straightforward practice. Get the method working first.

2 problems

The whole is 6. One part is 2. What is the other part?
Answer
6
Look at the trays. What is the whole?
7
3
4
First tray
Tap one to move it across
Second tray
Tap one to move it back
Balls7
First tray3
Answer

Stretch Yourself

Mixed problems. Work out what kind of question it is before you start.

1 problem

Snack Time
Mia has 7 grapes. She eats 3. How many are left?
Answergrapes