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Cogito

Grade 4 Math · Chapter 2 · Lesson 2

Practice Worksheet

Multiplying by 10, 100, and 1,000

Counting in bigger units.

10 problems · about 13 minutes · 4.NBT.B.5

NameDate

Figure — use these to answer the problems

Each object here stands for one hundred.

6 × 3 = 18

How many groups6
Hundreds in each3
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

2 problems

  1. From “Multiplication as Comparison”

    4 times as many as 12 is?

    Answer

  2. From “Subtracting Multi-Digit Numbers”

    6,004 − 2,738 = ?

    Answer

Warm Up

Straightforward practice. Get the method working first.

4 problems

  1. 8 × 700 = ?

    Answer

  2. Why does 6 × 100 end in two zeros?

    • Because the answer is a number of hundreds.
    • Because you always add two zeros.

  3. 7 × 100 = ?

    Answer

  4. 4 × 600 = ?

    Answer

Build It Up

The same ideas with more to keep track of.

2 problems

  1. 9 × 50 = ?

    Answer

  2. 6 × 2,000 = ?

    Answer

Stretch Yourself

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

2 problems

  1. The Crates

    8 crates each hold 200 apples. How many apples?

    Answerapples

  2. The Boxes

    5 boxes each hold 3,000 sheets. How many sheets?

    Answersheets