By accessing our **180 Days of Math for Fifth Grade Answers Key Day 71 **regularly, students can get better problem-solving skills.

## 180 Days of Math for Fifth Grade Answers Key Day 71

**Directions Solve each problem.**

Question 1.

Answer: 86

Explanation:

When wee add two or more addends,

we get the sum 29 + 57 = 86

Question 2.

4 • 22 = ______

Answer: 88

Explanation:

Dot represents multiplication.

Multiply the numbers 4 and 22,

we get the product 4 x 22 = 88

Question 3.

Answer: 18

Explanation:

Question 4.

Arrange the numbers in descending order.

3,859; 3,589; 3,958

_______________

Answer:

3,958; 3,859; 3,589

Explanation:

Arranging the numbers in descending order means,

writing the numbers from biggest to the smallest numbers.

Question 5.

Double $3.65.

______________

Answer:

$7.30

Explanation:

Double the number means adding the number to itself.

$3.65 + $3.65 = $7.30

Question 6.

Write the number that comes next in the sequence.

395, 345, 295, ________

Answer:

245

Explanation:

the number that comes next in the sequence.

Sequence follows (n-50) rule

n = 395, 345, 295,

subtract the 50 from the last number of sequence.

Question 7.

– 42 = 16 + 25

Answer: 83

Explanation:

Let the unknown number be x

x – 42 = 16 + 25

x – 42 = 41

x = 41 + 42

x = 83

Question 8.

What is the volume of the prism if each cube has 1-cm sides?

Answer: 28 cm3

Explanation:

Total 28 cubes are there

are placed as shown in the figure

the volume of the figure is

Volume = Height x Width x Length

Volume = 2 x 2 x 7 = 28 cm3

Question 9.

Draw at least 2 lines of symmetry.

Answer:

Explanation:

The line of symmetry is an imaginary line that passes through the center of the shape or object,

and divides it into identical halves.

Question 10.

Write the coordinates of:

Answer:

(C, 2)

Explanation:

(C, 2)

first lets check the letters

letter = C

then check the number given

number = 2

now check the fourth intersection upwards from C

Question 11.

You place the following shapes in a bag: 5 circles, 3 triangles, 7 squares, and 5 rectangles. If you reach into the bag, what is the probability that you will grab a triangle?

_____________________

Answer:

3 out of 20 or 15%

Explanation:

A bag has following shapes:

5 circles, 3 triangles, 7 squares, and 5 rectangles.

probability getting a triangle = \(\frac{3}{20}\)

= 0.15 or 15%

Question 12.

There are 6 balls. Half of the balls are blue. One ball is red. The rest are green. Write the fraction for the green balls.

_____________________

Answer:

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

Explanation:

There are 6 balls.

Half of the balls are blue = 3

One ball is red = 1

The rest are green = 6 – 4 = 2

The fraction for the green balls = \(\frac{2}{6}\)

= \(\frac{1}{3}\)