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## 180 Days of Math for Sixth Grade Answers Key Day 69

**Directions Solve each problem.**

Question 1.

Answer:

Question 2.

147 Ã— 10 = __

Answer: 1740

Question 3.

369 Ã· 3 = ______

Answer: 123

Question 4.

List the first three multiples of 5.

_______________________

Answer: The three multiples of 5 are 5, 10, 15.

Question 5.

Write 6 ones + 6 tenths + 9 hundredths as a decimal.

_______________________

Answer: 6 + 0.6 + 0.09 = 6.69

Question 6.

5 (10 – 8) = ______

Answer:

5 (10 – 8)

5 (2) = 10

Question 7.

5.6 + = 8.5

Answer:

Let the missing value be x

5.6 + x = 8.5

x = 8.5 – 5.6

x = 2.9

So, 5.6 + 2.9 = 8.5

Question 8.

Find j. j + 8 = 21

j = ___

Answer:

Given,

j + 8 = 21

j = 21 – 8

j = 13

Question 9.

Calculate the perimeter of a rectangle that is 6 m by 7 m.

______________

Answer:

L = 6 m

B = 7 m

We know that,

Perimeter of a rectangle = 2 (L + B)

P = 2(6 + 7)

P = 2 (13)

P = 26 meters

Thus the perimeter of a rectangle is 26 meters.

Question 10.

Are all quadrilaterals rectangles?

______________

Answer: No all quadrilaterals are not rectangles.

Question 11.

One quarter of Mindyâ€™s cookies were chocolate chip. How many were not chocolate chips?

Answer:

Mindy’s cookies = 5 dozens = 5 Ã— 12 = 60 cookies

60 Ã— 1/4 = 15 cookies

So, 15 cookies we not chocolate chip.

Question 12.

Eight people were at a party. If each person shook hands with every other person, how many handshakes were there?

____________________

Answer:

Given,

Eight people were at a party.

8 Ã— 7 = 56

There are 56 shakehands.