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## 180 Days of Math for Fifth Grade Answers Key Day 84

**Directions Solve each problem.**

Question 1.

Subtract 9 from 42.

_______________

Answer: 33

Explanation:

Subtracting smaller number 9 from bigger number 42,

we get the difference 33.

Question 2.

30 Ã— 10 _____

Answer:

300

Explanation:

Multiply the numbers 30 and 10,

we get the product 300.

Question 3.

Is 4 a factor of 20 and 32?

_____________________

Answer:

Yes, 4 is a factor of 20 and 32

Explanation:

when the given numbers exactly divide by 4,

leaving zero as a remainder then 4 is a factor.

Question 4.

Round 65,499 to the nearest thousand.

________________

Answer:

65,000

Explanation:

Rounding to the nearest thousand means,

rounding the decimal to its nearest thousandth.

the digit next to the thousandth is less than 5,

then round down to the nearest thousand.

Question 5.

Write \(\frac{4}{10}\) as a decimal.

Answer:

0.4

Explanation:

\(\frac{4}{10}\) as a decimal.

Divide 4 by 10 = 0.4

Question 6.

(19 + 20) + (16 + 20) = ___

Answer:

75

Explanation:

(19 + 20) + (16 + 20)

= 39 + 36

= 75

Question 7.

63 – = 7

Answer:

56

Explanation:

Let the given number be x

63 – x = 7

x = 63 – 7

x = 56

Question 8.

___ mL = 3\(\frac{1}{2}\) L

Answer:

3,500ml

Explanation:

1 liter = 1,000ml

3\(\frac{1}{2}\) L

= \(\frac{7}{2}\) L

= 3.5 L or 3,500ml

Question 9.

How many edges does the prism have?

Answer:

12 edges

Explanation:

A prism is a three dimensional solid, that has two identical bases,

with 12 edges.

Question 10.

Plot the following point on the graph: (2, 5)

Answer:

Explanation:

first lets point the numbers on graph

2 on x- axis and 5 on y-axis.

Question 11.

Two red and two blue blocks are placed into a bag. You take one of the blocks out of the bag. What is the probability the block is green?

_____________

Answer:

Zero probability.

Explanation:

A bag has 2 red and 2 blue blocks.

Probability of green blocks are zero,

as there are no green blocks in bag.

Question 12.

Jackie left home at 3:15. She spent 15 minutes walking to the movie theater. The movie lasted 2\(\frac{1}{2}\) hours. She then walked home. What time did she arrive back home?

_____________

Answer:

6:15

Explanation:

Jackie left home at 3:15.

She spent 15 minutes walking to the movie theater.

The movie lasted 2\(\frac{1}{2}\) hours.

She arrive back home = 15 + 2\(\frac{1}{2}\) = 0:15 + 2:30

=2:45

She then walked home 15min

=2:45 + 0:15 = 3:00

3:15 + 3:00 = 6:15