# 180 Days of Math for Fourth Grade Day 179 Answers Key

By accessing our 180 Days of Math for Fourth Grade Answers Key Day 179 regularly, students can get better problem-solving skills.

## 180 Days of Math for Fourth Grade Answers Key Day 179

Directions: Solve each problem.

Question 1.
26 + 16 = ___________ Question 2.
Is 3% equal to $$\frac{3}{10}$$?
3% = $$\frac{3}{100}$$
So, $$\frac{3}{10}$$ is not equal to $$\frac{3}{100}$$

Question 3.  Question 4.
99 ÷ 11 = ___________ Question 5.
Is 2,386 closer to 2,300 or 2,400?
Answer: 2,386 is closer to 2400 because 2386 is greater than 2350.

Question 6.
3,039 = 3,000 + __________
Answer: 3,039 = 3,000 + 39

Question 7.
Would you use square inches or square feet to measure the area of an area rug?
Answer: We use square inches to measure the area of an area rug.

Question 8.
What is the volume of a cube with 1-cm sides?
Side = 1 cm
Volume of a cube = s³
V = 1 × 1 × 1
V = 1 cubic cm.

Question 9.
How many obtuse angles are inside this polygon?  There are 7 obtuse angles

Question 10.
Tina practices the piano twice as long as her sister Jenny. Jenny practices the piano 25 minutes every day. How long does Tina practice each day?