Single Digit Addition
what is 4 + 5
9
What is 34 + 3
37
Use your 100 chart to add 10 + 11
21
III
3 tens = 30
It goes up!
What is 5 + 5
10
What is 54 + 8
62
Use your hundreds chart to add 69 + 4
73
IIIIII
60
What happens to the number when you subtract?
It goes down!
What is 9 + 1
10
What is 11 + 10
21
Use your hundreds chart to add 33 + 3
36
How many tens do you see? What is the total?
IIIIIIII
80
What is it called when you combine to numbers?
Adding
What is 8 + 3
11
What is 49 + 4
54
Use your hundreds chart to add 60 + 5
65
How many tens and ones do you see? What is the total?
III ooooo
35
What is it called when you take numbers apart?
Subtraction
What is 7 + 2
What is 95 + 4
99
Use your hundreds chart to add 56 + 4
60
How many tens and ones do you see? What is the total?
IIIII oooooo
56
What is it called when you add two numbers?