Adding
Subtracting
Counting Forward
Counting Backward
Hundreds Chart
100
14 + 10 =
24
100
20 - 10 =
10
100
10, 20, 30, ______
40
100
50, 40, 30, ______
20
100
Do we move up or down to add ten to a number?
Down
200
Write the number 10 more than 54
64
200
27 - 10 =
17
200
4, 14, 24, ______
34
200
55, 45, 35, _____
25
200
Do we move up or down to subtract ten, or find ten less?
Up
300
25 + 20 =
45
300
50 - 10 =
40
300
56, 66, 76, _____
86
300
89, 79, 69, _____
59
300
Do we move left or right to find one more than a number?
Right
400
5 + 70 = __5
What number will go in the tens place of this answer.
7 so the whole number is 75
400
70 - 10 =
60
400
45, ____, 65, 75
55
400
49, 39, 29, 19, _____
9
400
To add 40 to a number, we move down _____ spaces.
4
500
Misha and Zack make 26 sandwiches for a party. They run out of food and have to make 10 more sandwiches.
How many sandwiches do Misha and Zach make in all?
36 sandwiches
500
90 - 10 =
80
500
64, 74, 84, _____
94
500
66, _____
56
500
What number is below the number 83?
93