2nd grade Go Math Units 1-4 Review

Place Value

100

What number is made up of 3 hundreds, 4 tens, and 2 ones?

342

200

Write 507 in expanded form.

500 + 0 + 7

300

What is the value of the 3 in this number?

638

30

400

Write this number in words:

725

Seven hundred twenty-five

500

I am thinking of a number.

• I have 8 hundreds.
• I have 4 tens.
• I have 6 ones.

What number am I?

846

Compare & Order

100

Which number is greater?

426 or 462

462

200

Fill in the symbol:

583 ___ 538

>

300

Put these numbers in order from least to greatest:

318, 183, 381

183, 318, 381

400

Which Number comes next?

245, 255, 265, ____

275

500

Put these numbers in order from greatest to least:

709, 790, 907, 970

970, 907, 790, 709

Round It

100

Round 23 to the nearest ten.

20

200

Round 47 to the nearest ten.

50

300

Round 62 to the nearest ten.

60

400

Round 85 to the nearest ten.

90

500

Mia says:

"I rounded 74 to the nearest ten and got 70."

Is Mia correct? Explain how you know.

yes, 74 is closer to 70 than 80

Facts & Strategies

100

What is:

7 + 5

12

200

What is:

16 − 8

8

300

If:

8 + 7 = 15

What is:

15 − 7 = ?

8

400

There are 9 birds in a tree. 6 more birds join them.

How many birds are there altogether?

15

500

I am thinking of a number.

When I add 8, I get 17.

What is my number?

9

Number Sense

100

Is 14 even or odd?

even

200

Which number is 10 more than 56?

66

300

Which number is 10 less than 83?

73

400

There are 4 equal groups of 3.

Write a repeated-addition equation to find the total.

3+3+3+3=12

500

I am thinking of a number.

• I have 3 hundreds.
• I have 3 more tens than hundreds.
• I have 1 less one than my hundreds.

What number am I?

362