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Cogito

Grade 4 Math · Chapter 1 · Lesson 5

Practice Worksheet

Adding Multi-Digit Numbers

The standard algorithm, and why it works.

10 problems · about 14 minutes · 4.NBT.B.4

NameDate

Figure — use these to answer the problems

The blocks show what the written columns are doing.
First number
and Second number
Altogether

Hundreds

5

Tens

13

Ones

13

368 + 275 = 643

First number368
Second number275
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

3 problems

  1. From “Rounding to Any Place”

    Round 6,349 to the nearest hundred.

    Answer

  2. From “Comparing Large Numbers”

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

    Answer

  3. From “Reading and Writing Large Numbers”

    60,000 + 700 + 8 in digits?

    Answer

Warm Up

Straightforward practice. Get the method working first.

3 problems

  1. 3,758 + 2,496 = ?

    Answer

  2. When a column of tens fills, what do you make?

    • One hundred.
    • One ten.

  3. 2,486 + 1,375 = ?

    Answer

Build It Up

The same ideas with more to keep track of.

1 problem

  1. 5,092 + 3,918 = ?

    Answer

Stretch Yourself

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

3 problems

  1. 4,679 + 2,845 = ?

    Answer

  2. Two Crowds

    3,486 people came on Saturday and 2,795 on Sunday. How many in all?

    Answerpeople

  3. Two Journeys

    A trip of 1,258 km, then 2,647 km. How far in total?

    Answerkm