A third grade class is selling raffle tickets. Carlos sells 8 tickets. Serena sells 9 tickets. How many tickets have Carlos and Serena sold altogether?
17 tickets
Which equation best represents the problem?
Mark's pillow is 53 centimeters long and his book is 26 centimeters long. If Mark lays the pillow and the book end-to-end, what is their total length in centimeters?
a. 53-26=c
b. 53+c=26
c. 26+c=53
d. 26+53=c
d. 26+53=c
16-8 is a Half fact. What are 2 other Half facts?
Answers will vary
14-7
12-6
18-9
9+8=____
17
Paul watched an ant walk this path. How far did the ant walk?
The ant walked 99 mm
The coach has 16 tennis balls and 9 ping-pong balls in a bag. How many more tennis balls than ping-pong balls are there in the bag?
7 more tennis balls
Mike needs to read for 35 minutes for his homework. On the bus he read for 12 minutes. How many more minutes does he need to read to complete his homework?
a. 12+35=m
b. 35=m-12
c. 35=m+12
d. m=35+12
c. 35=m+12
Explain how you can use a Make Ten fact to solve 9+6. Include the answer to 9+6.
If you take one from the 6 and add it to the 9 you get 10+5
10+5=15
___+5=14
9
Brandon has 2 pieces of string. The first piece of string is 15 centimeters long. The second piece is 99 centimeters long. If Brandon lays the pieces of string end to end, what is their total length?
114 centimeters
Ms. Flynn has 215 math and science books in her classroom library. Of the books, 93 of them are math books. How many are science books?
122 science books
Which equation does NOT represent the problem?
Laurie has 2 strips of paper. The first strip is 38 inches long. The second strip is 25 inches long. If Laurie lays the two strips of paper end to end, what is their total length?
a. 38+25=i
b. i+38=25
c. i=38+25
d. 25+38=i
b. i+38=25
Can you use 7+7 to figure out 6+7? How
Yes
Add 1 to the 6 making it 7+7=14 then take one away from 14
___=13-9
4
Sara measured a poster. The first side of the poster was 81 cm long. The second side was 53 cm long. How much longer was the first side than the second side of the poster?
28 cm
Jessica hoped she would get $20 for her birthday. Her mom gave her $6, her grandma gave her $8, and her aunt gave her $9. How much money did she get in all? How much more or less than $20 did she get?
$23
$3 more
Which of the following equations best represents the problem?
John's book is 18 centimeters longer than his pencil. How long is John's pencil?
a. 18+9=p
b. p+18=9
c. 9-p=18
d. p+9=18
d. p+9=18
Della says that 7+8 is a Doubles Plus One fact. Do you agree with Della? Why or why not?
7+7 is a doubles fact and 7+8 is one more than 7+7
4+8+2+6=___
20
Frank is growing a plant. Each week he measures how tall the plant is. This week, his plant is 63 cm tall. That is 18 cm taller than it was last week. How tall was the plant last week?
45 cm
Rosa read 129 pages last week and 124 pages this week. Amy read 127 pages last week and 109 pages this week. Who read more pages in all during this week and last week? How many more pages did she read?
Rosa read 17 more pages than Amy
Which equation best represents the problem?
Sally spent 40 minutes riding her bike to the park. Then she rode her bike in the park for 25 minutes. How many minutes did Sally spend riding her bike?
a. 40+25=m
b. 25-m=40
c. 20-45=m
d. 40+m=20
a. 40+25=m
Josh says that all the Doubles facts have even sums. Do you agree with Josh? Why or why not?
I agree with Josh.
If you put the same number on the top and bottom rows on a number rack, every bead has a partner so the answer is even.
9+7=10+___
6
Sam drew a line that was 48 cm long. Then he decided he wanted a longer line so he added more to it. When he was finished, his line was 73 cm long. How many centimeters did he add to his line?
25 cm