# 180 Days of Math for Third Grade Day 66 Answers Key

By accessing our 180 Days of Math for Third Grade Answers Key Day 66 regularly, students can get better problem-solving skills.

## 180 Days of Math for Third Grade Answers Key Day 66

Directions Solve each problem.

Question 1.
9 + 4 = 10
Explanation:
9 + 4 = 10
The sum of 9 and 4 is 10

Question 2.
2 × 10 = 20
Explanation:
2 x 10 = 20
The product of 2 and 10 is 20

Question 3.
2 × 100 = 200
Explanation:
2 x 100 = 200
The product of 2 and 100 is 200.

Question 4.
What is the even number before 76?
_____________
74
Explanation:
is the even number before 76
All the numbers ending with 0,2,4,6 and 8 are even numbers.
If we divide a number into two groups with an equal number of elements in each, then the number is an even number.

Question 5.
Color one-quarter of these circles.  Explanation:
One- fourth is also known as one -quarter
if we make 8 in to 4 groups each group get 2 circles.

Question 6.
Fill in the missing number.
800, 700, 600, ___, 400
800, 700, 600, 500, 400
Explanation:
The above given pattern is less by 100
800 – 100 = 700
700 – 100 = 600
600 – 100 = 500

Question 7.
Which is shorter: a day or a month?
_____________
A day
Explanation:
A day has 24 hours
And a month has 31 days
so, day is shorter than the month.

Question 8.
How many hours are there from 3:00 A.M. to 6:00 P.M.?
_____________
15 hours
Explanation:
The formula for calculating elapsed time is elapsed time = end time – start time.
Subtract the minutes and hours separately.
3:00 A.M. to 12:00P.M.
it is 9 hours
and 12:00 P.M. to 6 P.M. it is 6 hours
9 + 6 = 15 hours.

Question 9.
Which of these shapes is a pentagon?
_____________  Explanation:
A pentagon has 5 angles, 5 sides and 5 vertices.
so, picture A has 5 angles, 5 sides and 5 vertices.

Question 10.
In 10 years, a painting will be 100 years old. How old is the painting now?
_____________