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## 180 Days of Math for Fifth Grade Answers Key Day 57

**Directions Solve each problem.**

Question 1.

Answer: 53

Explanation:

Add two or more addends to get the sum.

18 + 35 = 53

Question 2.

20 × 10 = _____

Answer: 200

Explanation:

Multiply the numbers 20 and 10 to get the product.

20 x 10 = 200

Question 3.

120 ÷ 10 ____

Answer: 12

Explanation:

Question 4.

Arrange the numbers in descending order.

5,349; 5,439; 5,934

________________

Answer:

5,934; 5,439; 5,349

Explanation:

Descending order means arranging the number from big to small.

Question 5.

25% of $60 is______

Answer: 15

Explanation:

25% of $60

= \(\frac{25}{100}\) x 100

= \(\frac{25X60}{100}\)

= \(\frac{1500}{100}\)

=15

Question 6.

60 ÷ 10 + 8 = ____

Answer:14

Explanation:

The given equation is a combined operation.

first divided 60 ÷ 10 =6

Then add 6 + 8 = 14

Question 7.

Answer: 12

Explanation:

Let the unknown number be x

25 + x = 37

x = 37 – 25

x = 12

Question 8.

Calculate the perimeter of a rectangle that is 14 cm by 27 cm.

_____________________

Answer:

82cm

Explanation:

The perimeter of a rectangle = 2 (Length + width)

L = 14cm; W = 27cm

= 2 (14 + 27)

= 2(41)

= 82 cm

Question 9.

Is 80° an acute, obtuse, or right angle?

_____________________

Answer:

Acute angle

Explanation:

Acute angle is greater then 0 and less then 90 degrees.

Question 10.

The chart below shows the number of goals scored in a soccer game. What would a good title for the chart be?

________________

The Avengers | 3 |

The Outlanders | 5 |

Answer:

The Outlander

Explanation:

As the number of goals scored in a soccer game,

the Outlanders would a good title.

Question 11.

You have a bag of 12 marbles. Six are blue, two are green, three are yellow, and one is red. If you reach into the bag and grab one marble, what is the probability that it will be red?

________________

Answer:

0.083 is the probability that it will be red

Explanation:

A bag contains 12 marbles.

Six are blue, two are green, three are yellow and one is red.

Total = 6 + 2 + 3 + 1 = 12

\(\frac{1}{12}\) = 0.083 is the probability that it will be red

8.33 % change of getting red marble

Question 12.

If you subtract 243 from me, the difference is 136. What number am I?

________________

Answer:

Number is 379

Explanation:

Let unknown number is x

subtract 243 from x, the difference is 136

x – 243 = 136

x = 136 + 243 = 379