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_____
Answer:
30,
Explanation:
Given to find 16 more than 14 is
16
+14
30
Question 2.
Answer:
32,
Explanation:
given to find the product of
8
X 4
32
Question 3.
What are 8 groups of 5?
______40________
Answer:
40,
Explanation:
Given to find 8 groups of 5 means
8 X 5 = 40.
Question 4.
Circle groups of 2.
Answer:
Explanation:
Circled groups of 2 as shown above.
Question 5.
Write the number for 10 tens.
_______100_______
Answer:
100,
Explanation:
Asked to write the number for 10 tens is
10 X 10 = 100.
Question 6.
10 
0 = 10
Answer:
+ 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_________
Answer:
7:15,
Explanation:
The time shown in the clock is 7:15.
Question 8.
What is the surface area of the rectangle?
___8___ squares
Answer:
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________
Answer:
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______
Answer:
41,
Explanation:
Given to triple 9 and then add 14 so
triple of 9 is 3 x 9 is 27 and adding 14 is
27
+14
41
therefore tripling 9 and adding 14 is 41.