Word Problems
Open Number Line
Hundreds Chart
Break Apart
Compensation
100
Nora has 15 cookies. She bakes 10 more cookies and gives 5 cookies to her friend. How many cookies does Mia have left?
20 cookies (15 + 10 - 5 = 20)
100
Show the addition of 26 + 32 on an open number line.
Start at 26, jump 30 to 56, and backtrack 2 to get to 58.
100
What is 14 + 33 on a hundreds chart?
: 47 (look from 14, move down 3, then right 3)
100
Use the break apart strategy to solve.
45 + 34
40 + 30 = 70 and 5 + 4 = 9, then 70 + 9 = 79
100
Use compensation to add 29 + 15.
Round 29 to 30, so 30 + 15 = 45, then subtract 1, total is 44.
200
Isaac has 24 toy cars. He buys 12 more and gives 8 away. How many toy cars does he have now?
28 toy cars (24 + 12 - 8 = 28)
200
Use an open number line to solve 47 + 12.
Start at 47, jump 10 to 57, then jump 2 to 59.
200
Find the sum of 25 + 30 on a hundreds chart.
55 (start at 25, move down 3 rows, correct column).
200
Use the break apart strategy to solve.
62 + 27
60 + 20 = 80, and 2 + 7 = 9, then 80 + 9 = 89
200
What is 58 + 23 using compensation?
Round 58 to 60, so 60 + 23 = 83, then subtract 2, total is 81.
300
Evie reads 32 pages of a book. Then she reads 15 more pages. If she started on page 10, what page does she end on?
Page 57 (10 + 32 + 15 = 57)
300
Draw an open number line for 15 + 24.
Start at 15, jump to 25 (10), jump to 39 (20), add 5, total is 39.
300
Where do you find 51 + 24 on a hundreds chart?
Start at 51, move down 2 rows to 70, move right 4 to 75, total is 75.
300
Use the break apart strategy to solve
23 + 49
20 + 40 = 60, and 3 + 9 = 12, then 60 + 12 = 72.
300
Add 47 + 25 using compensation.
Round 25 to 30, so 47 + 30 = 77, then subtract 5, total is 72.
400
Alivia made 40 cupcakes. She sells 15 and then bakes 20 more. How many cupcakes does she have now?
45 cupcakes (40 - 15 + 20 = 45)
400
Represent 41 + 36 on an open number line.
Start at 41, jump 30 to 71, and then jump 6 to get to 77.
400
If you add 56 + 11, what number do you get on the hundreds chart?
67 (move down 1 from 56 and over to the right 1)
400
Use the break apart strategy to solve
85 + 16
80 + 10 = 90, and 5 + 6 = 11, then 90 + 11 = 101
400
Use compensation to solve 76 + 19.
Round 19 to 20, so 76 + 20 = 96, then subtract 1, total is 95.
500
Miles has 45 stickers. He gets 12 more stickers for his birthday and loses 5 stickers. How many stickers does he have now?
52 stickers (45 + 12 - 5 = 52)
500
What is the equation shown on the open number line?
48 + 23 = 71
500
What number do you get if you start at 74... go down 2 rows and over 5 to the right.
74 + 25 = 99
500
What problem am I solving?
30 + 6
20 + 5
What is the sum?
36 + 25 = 61
500
In order to solve 32 + 49 using compensation, what number do I have to add to 49 to make it easier to add? And what number do I then subtract from 32 to balance it out?
What's the sum?
1 .... You add 1 to 49 to make it 50 and then you take 1 away from 32 to make 31.
50 + 31 = 81