Number Lines
Use a number line to show 80 + 10.
80 + 10 = 90
What number is made of 1 ten and 3 ones?
13
Break apart the tens and ones to add 20 + 14.
20 + 10 + 4 = 34
Tayshawn has 5 Moon stickers. Quayvis has 5 Saturn stickers. Chanel has 8 Neptune stickers. How many stickers do they have?
5 + 5 + 8 = 18
Draw a part-part-whole model to show 20 + 3. Find the sum!
Part part whole models should show 20 + 3 in the parts and 23 in the whole.
20 + 3 = 23
Use a number line to show 26 + 14.
Number lines will look different.
26 + 14 = 40
Break apart the tens and ones to add 58 + 12.
50 + 10 = 60
8 + 2 = 10
60 + 10 = 70
Juan and Bridget want to buy ice cream. Juan has $14 and Bridget has $18. How much money do they have?
14 + 18 = 32
Draw a part-part-whole model to show 45 + 20.
Part part whole models should show 45 and 20 as the parts and 65 as the whole.
45 + 20 = 65
Use a number line to show 74 + 12.
Number lines will look different.
74 + 12 = 86
What number is made of 4 tens and 9 ones?
49
Break apart the tens and the ones to add 34 + 41.
30 + 40 = 70
4 + 1 = 5
70 + 5 = 75
16 third graders joined a soccer game. Then, 24 second graders joined the game, too. How many kids are playing soccer?
16 + 24 = 40 kids
Draw a part-part-whole model to show 62 + 23.
Part part whole models should show 62 and 23 as the parts and 85 as the whole.
62 + 23 = 85.
Use a number line to show 43 + 25.
Number lines will look different.
43 + 25 = 68
What number is made of 8 tens and 4 ones?
84
Break apart the tens and the ones to add 12 + 75.
10 + 70 = 80
2 + 5 = 7
80 + 7 = 87
Ms. Martin is planting seeds. She has 22 sunflower seeds, 16 pumpkin seeds, and 9 strawberry seeds. How many seeds does Ms. Martin have?
22 + 16 + 9 = 47
Draw a part-part-whole model to show 21 + 45 + 12.
Part-part-whole models should show 21, 45, and 12 as the parts and 78 as the whole.
21 + 45 + 12 = 78
Use a number line to show 67 + 25.
Number lines will look different.
67 + 25 = 92
What number is made of 6 tens and 14 ones?
74
Break apart the tens and the ones to find 58 + 35.
50 + 30 = 80
8 + 5 = 13
80 + 13 = 93
Omar has 27 pencils. He buys 12 more, then his sister gives him 42 more. How many pencils does Omar have now?
27 + 12 + 42 = 81 pencils
Draw a part-part-whole model to show 44 + 18 + 26.
Part part whole models should show 44, 18, and 26 as the parts and 88 as the whole.
44 + 18 + 26 = 88