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Cogito

Grade 4 Math · Chapter 1 · Lesson 6

Practice Worksheet

Subtracting Multi-Digit Numbers

Unbundling across several places.

10 problems · about 15 minutes · 4.NBT.B.4

NameDate

Figure — use these to answer the problems

Break a hundred or a ten open when a column runs short.
Start with
Taken away
What is left

Hundreds

2

Tens

5

Ones

6

503 − 247 = 256

Start with503
Take away247
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

3 problems

  1. From “Adding Multi-Digit Numbers”

    3,758 + 2,496 = ?

    Answer

  2. From “Rounding to Any Place”

    Round 6,349 to the nearest hundred.

    Answer

  3. From “Comparing Large Numbers”

    Which is bigger, 32,450 or 32,405?

    Answer

Warm Up

Straightforward practice. Get the method working first.

3 problems

  1. 6,004 − 2,738 = ?

    Answer

  2. Does unbundling change the number?

    • No. It is only regrouped.
    • Yes. It gets smaller.

  3. 4,532 − 1,876 = ?

    Answer

Build It Up

The same ideas with more to keep track of.

1 problem

  1. 7,000 − 2,345 = ?

    Answer

Stretch Yourself

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

3 problems

  1. Check it: 4,655 + 2,345 = ?

    Answer

  2. The Target

    A target of 8,000 has 3,465 done. How many are left?

    Answerleft

  3. The Collection

    A collection of 6,240 loses 1,875. How many are left?

    Answerleft