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

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. Explanation:
we get the sum 29 + 57 = 86

Question 2.
4 • 22 = ______
Explanation:
Dot represents multiplication.
Multiply the numbers 4 and 22,
we get the product 4 x 22 = 88

Question 3. Explanation: Question 4.
Arrange the numbers in descending order.
3,859; 3,589; 3,958
_______________
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, ________
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
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? 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.  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:   (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?
_____________________
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.
_____________________
$$\frac{1}{3}$$
The fraction for the green balls = $$\frac{2}{6}$$
= $$\frac{1}{3}$$