Unit 2 Review

Fact Families

100

Choose the basic fact that could be used to complete the extended fact:

1,700 - 900 = _____

17-9=8

200

Choose the basic fact that could be used to complete the extended fact:

____ - 90 = 50

14-9=5

300

Choose the basic fact that could be used to complete the extended fact:

130 - _____ = 60

13-7=6

400

Choose the basic fact that could be used to complete the extended fact:

110 - _____ = 80

11-3=8

500

DOUBLE JEOPARDY !!

DOUBLE JEOPARDY !!

How are Fact Families and Extended Facts similar and How are they different?

Solve

100

^{97 - 45}

52

200

62 - 39

23

300

385 - 77

308

400

991 - 87

904

500

702 - 251

451

Estimating & Errors

100

Estimate the difference using quarter rounding.

73 - 26

50

200

Which place value was incorrectly regrouped? 

  ⁵60¹5

-  107

   408

the tens place

300

Estimate the difference using quarter rounding.

228 - 41

175

400

Name the error made in the problem. 

(write a problem on the board)

The tens place

500

Estimate the difference using quarter rounding.

969 - 311

675

Tables

100

Which station played the most songs in one day?

Rock

200

How many more songs did the jazz station play on Monday than Tuesday? 

5

300

On Tuesday, what was the difference between the number of rock songs and the number of rap songs? 

40

400

What was the total number of songs played for all three stations on Wednesday? 

720

500

What was the difference between the number of songs played on the jazz station on Monday and Wednesday? 

20

Graphs

100

What is the graph about? 

the price of diesel fuel every month

200

Which month had the cheapest diesel? 

May

300

What was the difference in the price of diesel for July and August? 

$10

400

What was the price of diesel for May? 

$435

500

The price of diesel in October is $20 more than the price in September. What was the price of diesel in October?

$465