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Cogito

Grade 1 Math · Chapter 3 · Lesson 2

Practice Worksheet

Counting Up To Subtract

Hop from the part to the whole and count the hops.

10 problems · about 11 minutes · 1.OA.B.4, 1.OA.C.5

NameDate

Figure — use these to answer the problems

Start on the part you have. Hop up to the whole and count your hops.
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Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

5 problems

  1. From “How Many More To Make It?”

    3 + ? = 7

    Answer

  2. From “Facts to Ten”

    7 + 3 = ?

    Answer

  3. From “Doubles and One More”

    3 + 4 = ?

    Answer

  4. From “Doubles”

    4 + 4 = ?

    Answer

  5. From “Finding the Missing Part”

    5 + ? = 9

    Answer

Warm Up

Straightforward practice. Get the method working first.

3 problems

  1. 9 − 7 = ?

    Answer

  2. 7 − 4 = ?

    Answer

  3. 8 − 5 = ?

    Answer

Build It Up

The same ideas with more to keep track of.

1 problem

  1. 10 − 7 = ?

    Answer

Stretch Yourself

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

1 problem

  1. Climbing Stairs

    Mia is on step 4. The top is step 10. How many more steps must she climb?

    Answersteps