# 180 Days of Math for Third Grade Day 21 Answers Key

By accessing our 180 Days of Math for Third Grade Answers Key Day 21 regularly, students can get better problem-solving skills.

## 180 Days of Math for Third Grade Answers Key Day 21

Directions Solve each problem.

Question 1.
What is 16 more than 14?
____30_____
30,

Explanation:
Given to find 16 more than 14 is
16
+14
30

Question 2. 32,

Explanation:
given to find the product of
8
X 4
32

Question 3.
What are 8 groups of 5?
______40________
40,

Explanation:
Given to find 8 groups of 5 means
8 X 5 = 40.

Question 4.
Circle groups of 2.  Explanation:
Circled groups of 2 as shown above.

Question 5.
Write the number for 10 tens.
_______100_______
100,

Explanation:
Asked to write the number for 10 tens is
10 X 10 = 100.

Question 6.
10 0 = 10
+ or -,

Explanation:
Given to find missing symbol 10 __ 0 = 10,
as result is 10 and the other number is 0 so if
add or subtract 0 the result is same so the symbol can be
+ or -.

Question 7.
What time is shown?
_____7:15_________ 7:15,

Explanation:
The time shown in the clock is 7:15.

Question 8.
What is the surface area of the rectangle?

___8___ squares
8,

Explanation:
Given to find surface area of the rectangle which has total 8 squares,
therefore it is 8.

Question 9.
How many angles are there in a square?
______4 angles________
4 angles,

Explanation:
As we know a  square have 4 sides and 4 angles.
All four internal angles of a square are equal
(each being 360°/4 = 90°, a right angle).
therefore a square has 4 angles.

Question 10.
Triple 9, and then add 14.
____41______