Adding Tens

Adding Hundreds

Adding Tens and Ones

Adding Multiples of 10

Look for a Pattern

100

Add using mental math. 40 + 42 =

82

100

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

570

100

Add using mental math.
41 + 24 =

65

100

Add using mental math. 550 + 130 =

680

100

Find the PATTERN and the NEXT 2 NUMBERS:
65, 55, 45

-10
35, 25

200

Add using mental math.
53 + 30 =

83

200

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

880

200

Add using mental math.
53 + 15 =

68

200

Add using mental math. 420 + 230 =

650

200

Find the PATTERN and the NEXT 2 NUMBERS:
2, 7, 12

+5
17, 22

300

Add using mental math. 135 + 40 =

175

300

Add the hundreds. Use mental math. 490 + 300

790

300

Add using mental math.
62 + 25 =

87

300

Add using mental math. 120 + 250 =

370

300

Find the PATTERN and the NEXT 2 NUMBERS: 110, 120, 130

+10 40. 50

400

Add using mental math. 250 + 19 =

269

400

Find the missing number. 530 + ____ = 1030

500

400

Add using mental math.
43 + 36 =

79

400

Add using mental math. 740 + 360 =

1100

400

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

+7, 436, 443

500

Nellie had 114 rubber bands. Then she bought a pack of 30 rubber bands. How many rubber bands does Nellie have now?

144

500

Find the missing number: _____ + 441 = 1241

800

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

Patty made 4 headbands last week. She made 8 this week. Next week, she will make 16. What is the pattern? How many headbands with Patty make the following week?

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

Click to zoom