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Addition
More Addition
Patterns
Rules
Multistep Problems
100
Write the problem vertically and solve. 45 + 3
48
100
Write the problem vertically and solve. 56 + 2
Write the problem vertically and solve.
100
What are the next two numbers in this pattern? 120, 220, 320, ______, _______
420, 520
100
What is the rule for this pattern? 120, 130, 140, 150
Counting up by 10s
100
Sam has 15 pencils. He broke 6 of the pencils. Then he sharpened two more. How many pencils does he have now? EXPLAIN.
Sam has 11 pencils. I know this because he started with 15 pencils and broke 6, so 15 - 6 = 9 pencils. Then he sharpened 2 more pencils. 9 pencils + 2 pencils = 11 pencils.
200
Write the problem vertically and solve. 63 + 6
69
200
Write the problem vertically and solve. 74 + 20
94
200
What are the next two numbers in this pattern? 116, 118, 120, _____, ______
122, 124, 126
200
What is the rule for this pattern? 155, 160, 165, 170
Counting up by 5s
200
Sarah had 30 minutes to finish her homework. She spent 5 minutes on the first few problems and then had a snack for 5 minutes. How much time does she have left to finish? EXPLAIN.
Sarah has 20 minutes left. I know this because 5 minutes + 5 minutes = 10 minutes, so she used 10 minutes of her time already. She had 30 minutes total, so 30 minutes - 10 minutes = 20 minutes left.
300
Write the problem vertically and solve. 67 + 15
82
300
Write the problem vertically and solve. 123 + 15
138
300
What are the next two numbers in this pattern? 400, 390, 380, _____, ______
370, 360
300
What is the rule for this pattern? 300, 290, 280, 270
Counting down by 10s
300
I bought 20 pencils on Monday. I bought 20 more pencils on Tuesday. I need 60 pencils. How many more pencils do I need to buy? EXPLAIN.
I need to buy 20 more pencils. I know this because 20 pencils + 20 pencils = 40 pencils, so I have 40 pencils already. I need 60 pencils, so 60 pencils - 40 pencils = 20 pencils.
400
Write the problem vertically and solve. 49 + 12
61
400
Write the problem vertically and solve. 146 + 34
180
400
What are the next two numbers in this pattern? 650, 550, 450, _____, _____
350, 250
400
What is the rule for this pattern? 133, 135, 137, 139, 141
Counting up by 2s
400
Dave needed to read 40 pages for his homework. First, he read 17 pages. Then he took a break. He came back and read 12 more pages. How many pages does he have left? EXPLAIN.
Dave needs to read 11 more pages. I know this because 40 - 17 = 23 pages. 23 pages - 12 pages = 11 pages left.
500
Write the problem vertically and solve. 114 + 28
142
500
Write the problem vertically and solve. 179 + 19
198
500
What are the next two numbers in this pattern? 285, 290, 295, _____, ______
300, 305
500
What is the rule for this pattern? 400, 395, 390, 385
Counting down by 5s
500
Ms. Kepley made 30 cookies. Mrs. Street also made 30 cookies. We need 100 cookies total. How many more cookies do we need? EXPLAIN.
We still need 40 cookies. I know this because 30 + 30 = 60, so we already made 60 cookies. We need 100, so 100 - 60 = 40 cookies.