Missing #
Strategies
Word Problems
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MIX-UP
100
18 = _______ + 6
12
100
Explain how you can use a strategy to find 8+7. Include the answer to 8+7 in your answer.
If I know 7+7 or 8+8 then I just take one more or one less to find that 8+7=15
100
Colton read 35 pages of his book on Monday and 39 on Tuesday. How many pages did he read in all?
74
100
45+ 39= ?
84
100
All double facts like 7 + 7 have even sums.
True
200
_______ 20 -12
8
200
How can you use 7 + 7 to solve 8 + 7?
If you know that 7 + 7 = 14 , then you know 8 + 7 is just one more!
200
Emma wanted a HUGE squishy for $71!! She has $35. How many more dollars does she need?
36
200
91-45=?
46
200
Zander's needoh is 18 cm long. His needoh is 8 cm longer than the squishy. How long is the squishy? Which equations match the story.
a) 18 - 8 = s
b.) s + 18 = 8
c.) 8 - s = 18
d.) s + 8 = 18
a d
300
9 + 7 = 10 + _______
6
300
Name 3 addition and 2 subtraction strategies for easy facts.
Addition-
Near Double, Making 10, Compensation
Subtraction-
Up over, Down under
300
Will measured his skateboard and it is 71 cm long. His little brother's skateboard is 53 cm long. How much longer is Will's skateboard that his brother's?
18 cm
300
134 + 26 =
160
300
Write an equation to represent the beads on the left of the number rack.
10 + 5 = 15
400
________ = 16 - 9
7
400
Use a strategy to solve 12-4=
Show up over or down under
400
78 third-graders at Ashville voted to go to the zoo. 39 voted to go skating. How many more voted for the zoo?
39
400
342-118=?
224
400
Ari has 13 marbles in her collection. Bailey has some marbles in her collection. Together Ari and Bailey have 30 marbles. Which of the following equations represents this situation?
a. 13 + m = 17
b. 30 - 17 = m
c. 13 + m = 30
d. m -17 = 30
b c
500
8 + 5 = 9 + _____
4
500
Aleah measured the distance around her yard to install a fence. How many of meters of fencing does she need?
32 meters
500
Grace read 29 pages last week and 44 pages this week. Matthew read 27 pages last week and 59 pages this week.Who read more pages in all? How many more pages were read?
Matthew read 13 more pages.
500
46 + 59 + 33 =
138
500
Lincoln has 17 cars in his collection. Addie has 12 cars in her collection. How many more cars does Lincoln have? Which letters represent the situation.
a.) 17 - 12 = c
b.) 17 + c = 12
c.) c + 12 = 29
d.) 29 + c = 17
a c