Repeated Addition
What multiplication fact is represented by 2 + 2 + 2?
3 x 2
If you subtract 2 from 8 until you reach 0, how many times do you subtract?
4
Mia buys 4 packs of pencils with 3 pencils in each pack. How many pencils does she have?
12 pencils
Lily has 12 cookies and shares them equally among 3 friends. How many cookies does each friend get?
4 cookies
Use partitioning: 7 × 13
= 7 × 10 + 7 × 3.
What is the answer?
91
What multiplication fact is represented by 5 + 5 + 5 + 5?
4 x 5
15 − 3 − 3 − 3 − 3 − 3 = 0. How many times was 3 subtracted?
5
A farmer has 5 rows of carrots with 6 carrots in each row. He picks 2 carrots. How many carrots are left?
28
(5 × 6 = 30, 30 − 2 = 28)
A teacher has 20 pencils. She gives them equally to 5 students and then finds 2 extra pencils. How many pencils does each student get before the extras are found?
4 pencils
Use halving and doubling to solve: 4 × 24
4 x 2 = 8, 24 ÷ 2 = 12
12 x 8 = 96
What repeated addition sentence is represented by 5 x 7?
7 + 7 + 7 + 7 + 7
24 − 6 − 6 − 6 − 6 = 0. What division fact does this represent?
24 ÷ 6 = 4
A bakery makes 7 trays of cookies with 8 cookies on each tray. Then they bake 10 more cookies. How many cookies do they have?
66
(7 × 8 = 56, 56 + 10 = 66)
A baker makes 36 cupcakes and puts them equally into 6 boxes. Then he adds 2 cupcakes to each box. How many cupcakes are in each box now?
8
(36 ÷ 6 = 6, 6 + 2 = 8)
Use partitioning: 16 × 25
= (10 × 25) + (6 × 25).
What is the answer?
400
What repeated addition sentence is represented by 6 x 9?
9 + 9 + 9 + 9 + 9 + 9?
If you repeatedly subtract 5 from 35 until you reach 0, how many subtractions are made?
7
A teacher has 9 boxes of markers with 12 markers in each box. Five markers run out of ink. How many working markers remain?
103
(9 × 12 = 108, 108 − 5 = 103)
A library has 45 books to place equally on 9 shelves. Then 1 book is removed from each shelf. How many books remain on each shelf?
4
(45 ÷ 9 = 5, 5 − 1 = 4)
Use doubling: If 7 × 8 = 56, what is 14 × 8?
112
This repeated addition expression equals 56: 8 + 8 + 8 + 8 + 8 + 8 + 8. What multiplication fact is it?
7 x 8
48 − 8 − 8 − 8 − 8 − 8 − 8 = 0. What division fact does this represent?
48 ÷ 8 = 6
A concert has 15 rows of seats with 20 seats in each row. After selling all the seats, 18 people cancel. How many seats remain filled?
282
(15 × 20 = 300, 300 − 18 = 282)
A coach has 72 water bottles for 8 teams. After dividing them equally, each team receives 3 more bottles. How many bottles does each team have?
12
(72 ÷ 8 = 9, 9 + 3 = 12)
Use a multiplicative strategy to solve 35 × 16.
560
(35 × 10) + (35 × 6) = 350 + 210 = 560