Distributive Property
There are 4 shelves in the library. Each shelf has 6 books displayed on it. Which expression can be used to find the total number of library books?
A. (4x6) + (4x6)
B. (1x6) + (3x6)
C. (2x2) + (2x2)
D. (6x4) + (6x4)
B. (1x6) + (3x6)
Find the number that makes the equation correct. Explain your reasoning. (3x10)+(1x10)=?
I did 3x10= 30 and 1x10=10. Then I did 30+10=40.
Part A: Richard arranged his counters in the array below. What two facts can Richard use to write an equation for the array?
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Answers will vary. All answers should equal 4x3=12.
6x3=?
18
A baker arranged cupcakes on a tray in 5 rows with 8 cupcakes in each row. Which facts can you use to find the total number of cupcakes?
A. (2x8) + (3x8)
B. (4x8) + (1x8)
C. (2x5) + (7x5)
D. (8x5) + (8x5)
A. (2x8) + (3x8)
B. (4x8) + (1x8)
Find the number that makes the equation correct. Explain your reasoning. (1x9)+(5x9)=?
I did 1x9=9 and 5x9=45. Then I added 45+9=54.
Part B: If Richard adds one more row of 3 counters can he still use the facts you wrote in Part A? Explain.
No he cannot use the facts in Part A because his array is now 5x3=15.
8x6=?
48
A gardener planted flowers in 6 rows with 7 flowers in each row. Which two expressions can you use to find the total number of flowers?
A. (3 × 7) + (3 × 7)
B. (6 × 7) + (7 × 6)
C. (5 × 5) + (2 × 6)
D. (2 × 7) + (4 × 7)
A. (3 × 7) + (3 × 7)
D. (2 × 7) + (4 × 7)
Find the number that makes the equation correct. Explain your reasoning. (5x2)+(2x2)=?
I did 5x2=10 and 2x2=4. Then I did 10 +4=14.
Henry broke up a large array into a 3x2 and a 3x6 array. What was the large array? Show your work.
The large array was 3x8.
Check student drawings.
7x8=?
56
A teacher sets up chairs in 2 rows with 9 chairs in each row. Which facts can you use to find the total number of chairs?
A. (2 × 9) + (2 × 9)
B. (2 × 6) + (2 × 3)
C. (1 × 9) + (1 × 9)
D. (1 × 0) + (1 × 9)
B. (2 × 6) + (2 × 3)
C. (1 × 9) + (1 × 9)
Find the number that makes the equation correct. Explain your reasoning. (3x8)+(5x8)=?
I did 3x8=24 and 5x8=40. Then I did 40+24=64.
A bakery has bagels displayed on 2 shelves. Each shelf has 3 baskets. Each basket has 4 bagels. How many bagels are displayed in all? Write an expression that represents the amount.
2x3x4
6x2x3=?
36
A gardener plants flowers in 4 rows with 7 flowers in each row. Which facts can you use to find the total number of flowers?
A. (2 × 7) + (2 × 7)
B. (4 × 5) + (4 × 2)
C. (1 × 7) + (3 × 7)
D. (7 × 4) + (1 × 4)
A. (2 × 7) + (2 × 7)
C. (1 × 7) + (3 × 7)
Find the number that makes the equation correct. Explain your reasoning. (8x6)+(1x6)=?
I did 8x6=48 and 1x6=6. Then I did 48+6=54.
A bookstore uses 5 books in each display. There are 2 displays on each of the bookstore's 4 walls. How many books are used in the displays? Show your work.
5x2x4= 40 books
4x3x2=?
24