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Cogito

Grade 2 Math · Chapter 3 · Lesson 5

Practice Worksheet

Three Ways to Write a Number

Digits, words, and expanded form.

10 problems · about 13 minutes · 2.NBT.A.3

NameDate

Figure — use these to answer the problems

Change the number and watch all three ways change together.

Hundreds

3

Tens

4

Ones

2

three hundred forty-two

300 + 40 + 2 = 342

The number342
Figure 1

Warm-Up Review

From earlier lessons. Loosen up before the new work.

2 problems

  1. From “Counting to 1,000”

    What comes after 499?

    Answer

  2. From “Skip-Counting by 5s, 10s, and 100s”

    Counting by 5s: 40, 45, ?

    Answer

Warm Up

Straightforward practice. Get the method working first.

4 problems

  1. 400 + 70 + 5 in digits?

    Answer

  2. What is the 3 in 539 worth?

    Answer

  3. 300 + 50 + 8 in digits?

    Answer

  4. 600 + 2 in digits?

    Answer

Build It Up

The same ideas with more to keep track of.

2 problems

  1. "Seven hundred thirty" in digits?

    Answer

  2. In expanded form, what is the 8 in 486 worth?

    Answer

Stretch Yourself

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

2 problems

  1. Writing a Cheque

    What is 200 + 60 + 4 written in digits?

    Answer

  2. Reading Aloud

    What is "four hundred nineteen" in digits?

    Answer