Subtraction Jeopardy

Using Estimation

100

Estimate

87 - 65 = ?

What is 20

200

Estimate

96 - 37 = ?

What is 60

400

Estimate

743 - 378 = ?

What is 300

500

Estimate

847 - 453 = ?

What is 300

Using Number Lines

100

Draw a number line to subtract 782 - 551

What is 231

300

Draw a number line to subtract 578 -142 

What is 436

500

Draw a number line to subtract 690 -387

What is 203

Using the Break Apart Strategy

100

Use the break apart to subtract 86 - 44 = ?

80 - 40 = 40

6- 4= 2

86 - 44 = 42

200

Use the break apart to subtract 75 - 32 = ?

70 - 30 = 40

5- 2= 3

75 - 32 = 43

300

Use the break apart to subtract 94 - 53 = ?

90 - 50 = 40

4- 3= 1

94 - 53 = 41

500

Use the break apart to subtract 79 -26 

70 - 20 = 50

9- 6= 3

79 - 26 = 53

Using Partial Sums

100

Use partial sums to solve 679 -141 =?

600   70   9

100   40   1

500   30   8 = 538

200

Use partial sums to solve 729 -417 = ?

700   20   9

400   10   7

300   10   2 = 302

300

Use partial sums to solve 856 -193 = ?

800   50   6

100   90   3

700   40   3 = 743

500

Use partial sums to solve 965 - 432 = ?

900   60   5

400   30   2

500   30   3 = 533

865 - 432 = ?

Story Problems

100

There were 8 kids working at a table. The teacher called 3 of them away to read together. How many were left at the table?

8-3=5 There are 5 children left working at the table.

200

There were 15 red and blue balloons. If 7 of them were red, how many were blue?

15-7=8 There were 8 blue balloons.

300

There were 66 students at the assembly. Then, 23 got up and sang a song. How many students were left in the audience?

66 - 23 ------- 43 There were 43 students in the audience.

400

There are 72 chickens in the coop. Only 49 of them laid eggs. How many chickens did not lay an egg?

72 - 49 ------ 23 There were 23 chickens that did not lay an egg.

500

Mrs. Farmer had $7.50 in her pocket. She spend $3.99 on a new frisbee for Bingo. How much change does Mrs. Farmer have in her pocket now?

$7.50 - $3.99 ----------- $3.51 Mrs. Farmer has $3.51 left in her pocket