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Cogito

Grade 1 Math · Chapter 3 · Lesson 9

Practice Worksheet

Adding and Subtracting to Ten

Mix them up and pick your own way.

10 problems · about 13 minutes · 1.OA.C.6, 1.OA.B.4

NameDate

Figure — use these to answer the problems

Any family gives you two adding facts and two taking-away facts.
  • 3 + 5 = 8
  • 5 + 3 = 8
  • 8 − 3 = 5
  • 8 − 5 = 3
First part3
Second part5
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

1 problem

  1. From “Subtracting From Ten”

    10 − 6 = ?

    Answer

Warm Up

Straightforward practice. Get the method working first.

5 problems

  1. 7 − 2 = ?

    Answer

  2. 6 + 4 = ?

    Answer

  3. 8 − 8 = ?

    Answer

  4. 9 − 5 = ?

    Answer

  5. 3 + 6 = ?

    Answer

Build It Up

The same ideas with more to keep track of.

2 problems

  1. 10 − 3 = ?

    Answer

  2. 5 + 5 = ?

    Answer

Stretch Yourself

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

2 problems

  1. The Bus

    There are 8 people on a bus. 3 get off. How many are still on?

    Answerpeople

  2. The Library

    Mia has 4 books and borrows 3 more. How many books now?

    Answerbooks