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

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 aÂ  square have 4 sides and 4 angles.
All four internalÂ anglesÂ of aÂ squareÂ are equal
(each being 360Â°/4 = 90Â°, a rightÂ angle).
therefore a square has 4 angles.

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