eureka math grade 3 module 1 lesson 8 homework

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Eureka Math Grade 3 Module 1 Lesson 8 Answer Key

Engage ny eureka math 3rd grade module 1 lesson 8 answer key.

Eureka Math Grade 3 Module 1 Answer Key

Eureka Math Grade 3 Module 1 Lesson 8 Problem Set Answer Key

Question 4. Write a multiplication sentence for each expression. You might skip-count to find the totals. The first one is done for you. a. 2 threes: 2 × 3 = 6 b. 3 twos: _________________ c. 3 fours: ________________ d. 4 threes: ________________ e. 3 sevens: ________________ f. 7 threes: ________________ g. 3 nines: _________________ h. 9 threes: ________________ i. 10 threes: _______________

b. 3 twos : 3 x 2 = 6, Explanation: Given 3 twos, 3 multiplied by 2 gives 6, So, 3 × 2 = 6.

c. 3 fours: 3 × 4 = 12, Explanation: Given 3 fours, 3 multiplied by 4 gives 12, So, 3 × 4 = 12.

d. 4 threes: 4 × 3 = 12, Explanation: Given 4 threes, 4 multiplied by 3 gives 12, So, 4 × 3 = 12.

e. 3 sevens:  3 x 7 = 21, Explanation: Given 3 sevens, 3 multiplied by 7 gives 21, So, 3 × 7 = 21.

f. 7 threes:  7 × 3 = 21, Explanation: Given 7 threes, 7 multiplied by 3 gives 21, So, 7 × 3 = 21.

g. 3 nines: 3 × 9 = 27, Explanation: Given 3 nines, 3 multiplied by 9 gives 27, So, 3 × 9 = 27.

h. 9 threes: 9 × 3 = 27, Explanation: Given 9 threes, 9 multiplied by 3 gives 27, So, 9 × 3 = 27.

i. 10 threes: 10 x 3 =30, Explanation: Given 10 threes, 10 multiplied by 3 gives 30, So, 10 × 3 = 30.

Question 5. Find the unknowns that make the equations true. Then, draw a line to match related facts. a. 3 + 3 + 3 + 3 + 3 = _________ b. 3 × 9 = _________ c. 7 threes + 1 three = _________ d. 3 × 8 = _________ e. _________ = 5 × 3 f. 27 = 9 × _________

a. 3 + 3 + 3 + 3 + 3 = 15,

Explanation: Given 3 + 3 + 3 + 3 + 3  adding 3, 5 times gives 15, So 3 + 3 + 3 + 3 + 3 = 15.

b. 3 × 9 = 27,

Explanation: Given 3 × 9, 3 multiplied by 9 gives 27, So 3 × 9 = 27.

c. 7 threes + 1 three = 8 threes = 24,

Explanation: Given 7 threes + 1 three = 7 × 3 + 1 × 3 = 21 + 3 = 24, So, 7 threes + 1 three = 8 threes = 24.

d. 3 × 8 = 24,

Explanation: Given 3 × 8, 3 multiplied by 8 gives 24, So 3 × 8 = 24.

e. 15 = 5 × 3,

Explanation: Given 5 × 3, 5 multiplied by 3 gives 15, So 15 = 5 × 3.

f. 27 = 9 × 3

Explanation: Given 27 = 9 × ___, Lets take missing number as x, 27 = 9 × x, So x = 27 ÷ 9 = 3, So 27 = 9 × 3.

b. How many tangerines does Isaac pick in 7 days? Write and solve a multiplication sentence to find the total.

Isaac picks 21 tangerines in 7 days, Multiplication sentence to find the total is 3 x 7 = 21.

Explanation: Wrote and solved a multiplication sentence to find the total as 3 x 7 = 21, therefore Isaac picks 21 tangerines in 7 days.

d. Write and solve a multiplication sentence to find the total number of tangerines Isaac picks.

Multiplication sentence is 3 x 10 = (3 × 7) + (3 × 3) = 21 + 9 = 30, The total number of tangerines Isaac picks are 30,

Explanation: Wrote and solved a multiplication sentence as 3 x 10 = (3 × 7) + (3 × 3) = 21 + 9 = 30, Therefore the total number of tangerines Isaac picks are 30.

Question 7. Sarah buys bottles of soap. Each bottle costs $2. a. How much money does Sarah spend if she buys 3 bottles of soap? _____$2_____ × ____3______ = $___6_____ b. How much money does Sarah spend if she buys 6 bottles of soap? _____$2_____ × _____6_____ = $__12______

a. Sarah spends $6 if she buys 3 bottles of soap,

Explanation: Given Sarah buys bottles of soap. Each bottle costs $2, So money spent by Sarah if she buys 3 bottles of soap are $2 × 3 = $6.

b. Sarah spends $12 if she buys 6 bottles of soap,

Explanation: Given Sarah buys bottles of soap. Each bottle costs $2, So money spent by Sarah if she buys 6 bottles of soap are $2 × 6 = $12.

Eureka Math Grade 3 Module 1 Lesson 8 Exit Ticket Answer Key

Mary Beth organizes stickers on a page in her sticker book. She arranges them in 3 rows and 4 columns. a. Draw an array to show Mary Beth’s stickers. b. Use your array to write a multiplication sentence to find Mary Beth’s total number of stickers. c. Label your array to show how you skip-count to solve your multiplication sentence. d. Use what you know about the commutative property to write a different multiplication sentence for your array.

b. Mary Beth’s total number of stickers are 12,

Explanation: Used my array to write a multiplication sentence as 3 × 4 = 12, in finding Mary Beth’s total number of stickers.

d. Commutative property to write a different multiplication sentence for my array is 3 × 4 = 4 x 3,

Explanation: Used what I know about the commutative property to write a different multiplication sentence for my array as 3 × 4 = 4 x 3.

Eureka Math Grade 3 Module 1 Lesson 8 Homework Answer Key

Question 4. Write a multiplication sentence for each expression. You might skip-count to find the totals. The first one is done for you. a. 5 threes: 5 × 3 = 15 b. 3 fives: __________________ c. 6 threes: ________________ d. 3 sixes: ___________________ e. 7 threes: __________________ f. 3 sevens: __________________ g. 8 threes: ________________ h. 3 nines: _________________ i. 10 threes: _______________

b. 3 fives: 3 × 5 = 15,

Explanation: Given 3 fives, 3 multiplied by 5 gives 15, So, 3 × 5 = 15.

c. 6 threes: 6 × 3 = 18,

Explanation: Given 6 threes, 6 multiplied by 3 gives 18, So, 6 × 3 = 18.

d. 3 sixes: = 3 × 6 = 18,

Explanation: Given 3 sixes, 3 multiplied by 6 gives 18, So, 3 × 6 = 18.

e. 7 threes: 7 × 3 = 21,

Explanation: Given 7 threes, 7 multiplied by 3 gives 21, So, 7 × 3 = 21.

f. 3 sevens: 3 × 7 = 21,

Explanation: Given 3 sevens, 3 multiplied by 7 gives 21, So, 3 × 7 = 21.

g. 8 threes: 8 × 3 = 24,

Explanation: Given 8 threes, 8 multiplied by 3 gives 24, So, 8 × 3 = 24.

h. 3 nines: 3 × 9 = 27,

Explanation: Given 3 nines, 3 multiplied by 9 gives 27, So, 3 × 9 = 27.

i. 10 threes: 10 × 3 = 30,

Explanation: Given 10 threes, 10 multiplied by 3 gives 30, So, 10 X 3 = 30.

Question 5. Find the unknowns that make the equations true. Then, draw a line to match related facts. a. 3 + 3 + 3 + 3 + 3 + 3 = _________ b. 3 × 5 = _________ c. 8 threes + 1 three = _________ d. 3 × 9 = _________ e. _________ = 6 × 3 f. 15 = 5 × _________

a. 3 + 3 + 3 + 3 + 3 + 3 = 18,

Explanation: Given 3 + 3 + 3 + 3 + 3 + 3 adding 3, 6 times gives 18, So 3 + 3 + 3 + 3 + 3 + 3 = 18.

b. 3 × 5 = 15,

Explanation: Given 3 × 5, 3 multiplied by 5 gives 15, So 3 × 5 = 15.

c. 8 threes + 1 three =9 threes = 27,

Explanation: Given 8 threes + 1 three = 8 × 3 + 1 × 3 = 24 + 3 = 27, So, 8 threes + 1 three = 9 threes = 27.

d. 3 × 9 = 27,

e. 18 = 6 × 3,

Explanation: Given 6 × 3, 6 multiplied by 3 gives 18, So 18 = 6 × 3.

f. 15 = 5 × 3,

Explanation: Given 15 = 5 × ___, Lets take missing number as x, 15 = 5 × x, So x = 15 ÷ 5 = 3, So 15 = 5 × 3.

Explanation: Given Fernando puts 3 pictures on each page of his photo album. He puts pictures on 8 pages. a. Used circles to draw an array that represents the total number of pictures in Fernando’s photo album as 3 X 8.

b. Multiplication sentence for Fernando’s total number of pictures is 3 X 8 = 24,

Explanation: Used my array to write and solve a multiplication sentence to find Fernando’s total number of pictures as 3 X 8 = 24.

d. Multiplication sentence is 3 x 10 = (3× 8) + (3 × 2) = 24 + 6 = 30, The new total number of pictures in Fernando’s album are 30,

Explanation: Wrote and solved a multiplication sentence as 3 x 10 = (3 × 8) + (3 × 2) = 24 + 6 = 30, Therefore the new total number of pictures in Fernando’s album are 30.

Question 7. Ivania recycles. She gets 3 cents for every can she recycles. a. How much money does Ivania make if she recycles 4 cans? ____3______ × ___4_______ = ___12_____ cents b. How much money does Ivania make if she recycles 7 cans? ____3______ × ____7______ = ____21____ cents

a. Ivania makes 12 cents if she recycles 4 cans,

Explanation: Given Ivania recycles and she gets 3 cents for every can she recycles, So money Ivania makes if she recycles 4 cans is 3 cents × 4 = 12 cents.

b. Ivania makes 21 cents if she recycles 7 cans,

Explanation: Given Ivania recycles and she gets 3 cents for every can she recycles, So money Ivania makes if she recycles 7 cans is 3 cents × 7 = 21 cents.

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