Show:
Adding Tens and Ones
Adding Multiples of 10
Adding Hundreds
Subtracting 10
Look for a Pattern
100
Add using mental math. 41 + 24 =
65
100

Add using mental math. 550 + 10 =

560

100

Add the hundreds. Use mental math. 170 + 400 =

570

100

Add using mental math. 410 - 10 =

400

100
Find the PATTERN and the NEXT 2 NUMBERS: 65, 55, 45
-10 35, 25
200
Add using mental math. 53 + 15 =
68
200

Add using mental math. 400 + 30 =

430

200

Add the hundreds. Use mental math. 380 + 500 =

880

200

Add using mental math. 390 - 10 =

380

200
Find the PATTERN and the NEXT 2 NUMBERS: 2, 7, 12
+5 17, 22
300
Add using mental math. 62 + 25 =
87
300

Add using mental math. 120 + 10 =

130

300

Add the hundreds. Use mental math. 490 + 300

790

300

Add using mental math. 33 - 10 =

23

300

Find the PATTERN and the NEXT 2 NUMBERS: 110, 220, 330

+110     40, 50

400
Add using mental math. 43 + 36 =
79
400

Add using mental math. 479 + 10 =

489

400

Find the missing number. 530 + ____ = 1030

500

400

Add using mental math. 71 - 10 =

61

400

Find the PATTERN and the NEXT 2 NUMBERS: 415, 422, 429

+7, 436, 443

500

Tad has 72 seashells. He finds 15 more shells. How many seashells does Tad have in all?

87

500

A year ago, Ray's puppy weighed 10 pounds. Now his puppy weighs 110 pounds more. How much does Ray's puppy weigh.

120 pounds

500
Find the missing number: _____ + 441 = 1241

800

500

Nellie had 82 rubber bands. Then she lost 10 rubber bands. How many rubber bands does Nellie have now?

72

500

Patty made 4 headbands last week. She made 8 this week. Next week, she will make 16. 

What is the pattern? 

How many headbands will Patty make the following week?

It doubles. Patty will make 32 headbands the following week.