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Cogito

Grade 3 Math · Chapter 2 · Lesson 2

Practice Worksheet

Rounding to the Nearest Hundred

The same rule, one place bigger.

10 problems · about 12 minutes · 3.NBT.A.1

NameDate

Figure — use these to answer the problems

Move the dot between 300 and 400. Halfway is 350.
300350400halfway
The number347
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

2 problems

  1. From “Rounding to the Nearest Ten”

    Round 73 to the nearest ten.

    Answer

  2. From “Multiplication and Division Word Problems”

    5 boxes with 8 pens each. How many pens?

    Answer

Warm Up

Straightforward practice. Get the method working first.

4 problems

  1. Round 649 to the nearest hundred.

    Answer

  2. When rounding to the nearest hundred, which digit decides?

    • The tens digit.
    • The ones digit.

  3. Round 271 to the nearest hundred.

    Answer

  4. Round 512 to the nearest hundred.

    Answer

Build It Up

The same ideas with more to keep track of.

2 problems

  1. Round 750 to the nearest hundred.

    Answer

  2. Round 96 to the nearest hundred.

    Answer

Stretch Yourself

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

2 problems

  1. The Stadium

    438 tickets were sold. Roughly how many, to the nearest hundred?

    Answertickets

  2. The Big Nine

    Round 309 to the nearest hundred.

    Answer