# 180 Days of Math for Fourth Grade Day 70 Answers Key

By accessing our 180 Days of Math for Fourth Grade Answers Key Day 70 regularly, students can get better problem-solving skills.

## 180 Days of Math for Fourth Grade Answers Key Day 70

Directions Solve each problem.

Question 1.  Explanation:
Working each column from right to left
9 is greater than 5 so you must regroup:
Take 1 from 4, so 4 becomes 3.
Add 10 to 5, so 5 becomes 15.

Question 2.
9 × 9 = ___
9 x 9 = 81
Explanation:
The product of given two numbers 9 and 9 is 81.

Question 3.  Explanation:
We have the equation:
24 ÷ 3 = 8
Calculated to 0 decimal places.

Question 4.
48 ÷ 6 = ___ Explanation:
We have the equation:
48 ÷ 6 = 8
Calculated to 0 decimal places.

Question 5.
Is 1,442 closer to 1,400 or 1,500?
_______________
1,442 closer to 1,400
Explanation:
1442 – 1400 = 42
1500 – 1442 = 58
so, 1442 is near to 1400.

Question 6.
Complete the chart to find the cost of 7 pens at 10¢ each.

 1 Pen 2 Pens 3 Pens 4 Pens 10¢ 5 Pens 6 Pens 7 Pens 8 Pens Explanation:
1 pen cost is 10¢
so, 7 pens cost = 7 x 10 = 70¢

Question 7.
A classroom is 48 m2 and the coat room is 12 m2. What is the total area?
_______________
Given,
The classroom is 48 m2 and the coat room is 12 m2.
48 + 12 = 60 sq. meters
So, the total area is 60 sq. meters.

Question 8.
1 hour = ___ minutes
1 hour = 60 minutes
Explanation:
There are 60 minutes in 1 hour.

Question 9.
Color the polygons.  Explanation:
A is in semi circle shape
B is in polygon shape
C is in oval shape.

Question 10.
Shade half of the area so that both the shaded and unshaded parts have the same shape.  