Adding and Subtracting 10's
2-Digit Addition
2-Digit Subtraction
3 Addends
Fact Families
100

10+10=

20

100

25+12=

37

100

76-12=

64

100

Nicolas, Teagan, and Olivia made 3 plates of cookies. Lane, Cait, and Blake made 4 plates. Finally, Owen, Xavier, and Claire made 6 plates. How many plates of cookies did the first graders make?

13

3+4=7

7+6=13

100

What is one related subtraction fact for 

2+3=5

5-3=2

OR

5-2=3

200

45+10=

55

200

88+11=

99

200

12-10=

2

200

Peter and Thomas each ran 2 miles. Franco also ran 2 miles. How many miles did all three boys run?

2+2=4 and 4+2=6

200

Fill in the blanks... 

If 3+4=7

Then ____+3=7 and ______-4=3

4+3=7 and 7-4=3

300

35-10=

25

300

12+31=

43

300

45-21=

24

300

Lucy and Maggie made 7 cards. Emmalee and Sofia made 4 cards. And Natalia and Kaitlyn made 5 cards. How many cards did the girls make?

16

7+4=11

11+5=16

300

What is one related addition fact for the following subtraction fact?

12-2=10

10+2=12


OR


2+10=12

400

50-10=

40

400

When adding 2 numbers, you always add the __________ place first.

ones place

400

If you subtract 0 from any 2-digit number, you get...

Itself (for example, 30-0=30 or 61-0=61)

400

James has 1 sibling. Thomas also has 1 sibling. Lucia has 3 siblings. How many siblings do they all have?

(1+1=2 2+3=5)

400

Tell me the WHOLE fact family for the following numbers... 12  8  4

4+8=12

8+4=12

12-4=8

12-8=4

500

70+10=

80

500

0 added to any number equals...

Itself (For example, 20+0=20 or 79 +0 =79)

500

When subtracting 2-digit numbers, you always subtract the ________________ place first.

ones place

500

Mia has 3 toys. Keira has 2 toys. Kahlan has 4 toys. How many do they all have together?

(3+2=5 and 5+4=9)

500

Tell me the WHOLE fact family for the following numbers. 4  3  7

4+3=7

3+4=7

7-3=4

7-4=3