Addition
344 + 231
300 + 200 = 500
40 + 30 = 70
4 + 1 = 5
500 + 70 + 5 = 575
295 - 82
82 -> 90 -> 100 -> 200 -> 295
8 + 10 + 100 + 95
95 + 10 = 105
100 + 105 = 205
205 + 8 = 213
3 groups of 6
6 + 6 + 6 = 18
24 divided into groups of 4
4, 8, 12, 16, 20, 24 = 6 groups
24 divided by 4 = 6
Identify the fraction shown in the picture.
What is 5/6?
569 + 188
500 + 100 = 600
60 + 80 = 140
9 +8 = 17
600 + 140 = 740
740 + 17 = 757
703 - 376
376 -> 380 -> 400 -> 700 -> 703
4 + 20 + 300 + 3
300 + 20 + 7 = 327
9 x 4
Break 4 into 2 + 2
9 x 2 = 18
9 x 2 = 18
18 + 18 = 36
70 ÷ 7 =
I know whenever the tens digit and the single digit are the same, the answer is ten.
70 ÷ 7 = 10
I can check my answer by multiplying 7 x 10 = 70.
Name the size of the fractional pieces in the model.
What are sixths?
50 + w = 75
75 - 50 = 25
w = 25
y - 41 = 9
41 + 9 = 50
y = 50
a x 5 = 45
45 ÷ 5 = 9
5, 10, 15, 20, 25, 30, 35, 40, 45 = 9 groups
u ÷ 3 = 2
3 x 2 = 6
Look at the model. What fraction of the circles are blue?
What is 5/12?
You buy a chocolate bar for $1.25 and a bag of chips for $1.60. How much did you spend altogether?
1.25 + 1.60
1 + 1 = 2
25 + 60 = 85
You spent $2.85 altogether.
You buy a book for $7.20 with a $10 bill. How much change will you get back?
1000 - 720
720 -> 800 -> 1000
80 + 200 = 280
You will get $2.80 in change back.
4 x 1/2
1/2 + 1/2 + 1/2 + 1/2 = 4/2
4/2 = 2 wholes
3 ÷ 1/3
If I draw three rectangles and divide each one into three pieces, I get 9 pieces altogether.
3 ÷ 1/3 = 9
2/8 + 5/8 =
What is 7/8?
You are building a fence. Your yard is shaped like a rectangle with the short sides measuring 8 meters and the long sides measuring 12 meters. How much fence do you need in total?
What is 40 meters?
12 + 12 = 24
8 + 8 = 16
24 + 16 = 40
There are 43 cats at the Humane Society. In one week, 19 are adopted. How many cats are still there?
43 - 19
19 -> 20 -> 40 -> 43
1 + 20 + 3 = 24
There are 24 cats still there.
You need to buy a rug for your hallway. The length of your hallway is 5 m and the width is 3 m. What will the area of the rug be?
5 x 3 = 15
The area of the rug will 15 meters squared.
Bats are sleeping in a cave. There are 16 wings in total. How many bats are in the cave?
Bats have 2 wings so if I divide the number of wings by the number of wings bats have, I will get the total number of bats!
16 ÷ 2 = 8
There are 8 bats in the cave.
Which part of the fraction shows how many total pieces you have altogether?
What is the denominator?