Basic Addition and Subtraction

Addition

100

2+2+6

10

200

9+2+4

15

300

15 + 10 + 25

50

400

20 + 6+10

36

500

8+7+9

24

Addition 2

100

10+15

25

200

12+19

31

300

25 + 26

51

400

56+42

98

500

28+23

51

Subtraction

100

20-9-3

8

200

44-28

16

300

31-23

8

400

88-67

21

500

61-48

13

Subtraction 2

100

44-19

25

200

56-39

17

300

32-18

14

400

47 - 24

23

500

52-19

33

Think Hard!!

100

Can you skip count by 3's to 30?

3,6,9,12,15,18,21,24,27,30

200

Do I need to carry or regroup in this problem?

35+47

Yes, because  7+5= 12   

300

Can you skip count by 4's to 40?  

4,8,12,16,20,24,28,32,36,40

400

finish the sentence:

30 days has September....

April, June and November. All the rest have 31 but February is 28 which comes once in 4 gives 1 day more.

500

BONUS Vocabulary: What is the answer to an addition and Subtraction problem called?

Sum & Difference