Unit 1
8+9=?
17
odd
Which equations have a sum of 64?
a. 22+24=?
b. 33+31=?
c. 45+19=?
d. 54+8=?
b, c
Lia has 38 red cups. She has 25 blue cups. How many cups does Lia have in all?
63 cups
Number of T-Shirts:
Will has 4
Mandy has 7
Greg has 12
Cindy has 9
Which 3 students together have a sum of 20 t-shirts? Show your work!
Will, Mandy, and Cindy
4+7=11, 11+9=20
___+7=15
8
Draw a picture that shows 8+8=16. Then tell me if it's even or odd.
O O O O O O O O
O O O O O O O O
even, each circle has a pair!
Ebony has 45 beads. Ivan gives her 26 more beads. How many beads does Ebony have in all?
Solve with a number line
+20 +5 +1
<----------------->
45 65 70 71
71 beads
69+27=?
96
Brian has 3 columns of bugs. Each column has 5 bugs. Write an equation that shows how many bugs Brian has in all.
5+5+5=15
Using a number line, find the answer to this problem.
Maria has 15 dinner plates. She uses 9 of them for a party. How many of Maria's plates are not used?
<------------------------------------>
5 6 7 8 9 10 11 12 13 14 15 16
6
Write an equation that matches this array of circles:
O O O O
O O O O
O O O O
O O O O
4+4+4+4=16
Lily has 46 songs on her iPod. Tonya has 53 songs on her iPod. How many songs do they have in all?
SHOW YOUR WORK!
99 songs
Find 64+28. Show Your Work!
92
Juan has a bag of large rubber bands. He wants to buy a small bag and medium bag of rubber bands. If he does, will Juan have more small and medium rubber bands than the large bag?
Small: 25 bands
Medium: 45 bands
Large: 70 bands
Which equations have a sum of 15?
a. 7+8=?
b. 8+7=?
c. 9+6=?
d. 5+10=?
a, b, c, and d
Mike has 4 rows of crackers. He has 5 crackers in each row. How many crackers does he have in all? Draw an array and write an equation to find your answer
O O O O O
O O O O O
O O O O O
O O O O O
5+5+5+5=20 OR 4+4+4+4+4=20
Which equations are equal to 26+16? Choose all that apply.
a. 30+10+2
b. 30+12
c. 25+20
d. 20+22
a, b, d
Carla buys 2 packages of pens. She buys 49 pens in all. Which color pens does Carla buy?
Blue - 25 pens
Black - 12 pens
Red - 24 pens
Green - 33 pens
Blue and Red
The dance team has 13 dancers. Then 7 more dancers join. The next week 10 dancers quit. How many dancers are now on the team?
10 dancers
Which addition equation will help you solve this subtraction problem?
Maria has 11 rings. She loses 3 rings. How many rings does Maria have left?
a. 3+1=4
b. 6+5=11
c. 3+8=11
d. 2+9=11
c
Mrs. Dunlap is planting some flowers in her garden. She has 10 tulips, 5 roses, and 10 daffodils. She wants to plant the flowers in an array, where each row has 5 flowers. How many rows of flowers will be in her garden?
5 rows
Mike used 27 nails to build a chair. He used 14 more nails to build a table than he used to build the chair. How many nails in all did Mike use?
68 nails
37+39+12+11=?
99
There were 38 yo-yos in a toy store. Then the store got 12 more yo-yos. How many yo-yos are at the store now? Use a BAR DIAGRAM to solve.
50 yo-yos