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Cogito

Grade 3 Math · Chapter 3 · Lesson 3

Practice Worksheet

Multiplying by 7

Fives plus twos.

10 problems · about 13 minutes · 3.OA.C.7, 3.OA.B.5

NameDate

Figure — use these to answer the problems

Cut after 5 columns. Fives and twos make sevens.

8 × 7 = 56

8 × 7 = (8 × 5) + (8 × 2) = 40 + 16 = 56

Rows8
Columns7
Cut after this column5
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

2 problems

  1. From “Multiplying by 6”

    9 × 6 = ?

    Answer

  2. From “Breaking an Array Apart”

    7 × 8 = ?

    Answer

Warm Up

Straightforward practice. Get the method working first.

4 problems

  1. 8 × 7 = ?

    Answer

  2. How can you split a seven?

    • Into a five and a two.
    • It cannot be split.

  3. 4 × 7 = ?

    Answer

  4. 7 × 7 = ?

    Answer

Build It Up

The same ideas with more to keep track of.

2 problems

  1. 9 × 7 = ?

    Answer

  2. 56 ÷ 7 = ?

    Answer

Stretch Yourself

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

2 problems

  1. The Weeks

    How many days are in 6 weeks?

    Answerdays

  2. More Weeks

    How many days are in 9 weeks?

    Answerdays