Number Concepts
Rounding/Estimating
Operations
Algebraic Thinking
SURPRISE!
100

What is the value of the 5 in the number 45,210?

5,000

100

Round 82,194 to the nearest ten thousand.

80,000


100

Find the sum: 14,509 + 2,381 =

16,890

100

Write an equation to show: 24 is 4 times as many as 6

24 = 4 x 6

100

True or False: 8 is a multiple of 16.

FALSE! 16 is a multiple of 8. 

200

Write this number in standard form: "Four hundred six thousand, twenty-two.

406,022

200

Estimate 335 ÷ 8

About 40

200

Find the difference: 5,000 - 1,245 =

3,755

200

Sarah has 5 times as many stickers as Leo. Leo has 7 stickers. How many does Sarah have?

35 stickers

200

Find the missing number: 3,000 + ________ + 40 + 2 = 3,542

500

300

Compare these numbers using <, >, or =: 78,093 ____ 78,903.

78,093 < 78,903

300

Estimate the sum of 423 + 578 by rounding to the nearest hundred.

400 + 600 = 1,000

300

What is 45 x 6?

270

300

List all the factors of 12. 

1, 2, 3, 4, 6, 12

300

What is the remainder when you divide 25 by 4?

1

400

Which is 10 times greater than 400: 4,000 or 40?

4,000

400

To the nearest hundred, what is the smallest whole number that rounds to 500?

450

400

Find the quotient: 144 ÷ 6

24

400

Is 37 a prime or composite number?

Prime

400

Solve (4 x 3) + (10 ÷ 2)

12 + 5 = 17

500

What is the expanded form of 50,307?

50,307=50,000+300+7

500

A stadium holds 45,892 people. If the news reports the attendance rounded to the nearest thousand, what number do they say?

46,000

500

Solve 1,234 x 5

6,170

500

A movie theater has 10 rows with 8 seats in each row. For a Saturday show, 65 tickets were sold. How many seats are still empty?

15 seats were empty

500

I am a 3-digit number. My tens digit is 4 times greater than my ones digit. My hundreds digit is 5 less than my tens digit. The sum of all my digits is 13. What number am I?

382