By accessing our 180 Days of Math for Fourth Grade Answers Key Day 64 regularly, students can get better problem-solving skills.

Directions Solve each problem

Question 1.
Subtract 19 from 36.
______________
36 – 19 = 17

Explanation:
Subtract 19 from 36 is 17

Question 2.
Is 0.4 less than 0.04?
______________
Explanation:
0.4 = $$\frac{4}{10}$$
0.04 = $$\frac{0.4}{10}$$
So $$\frac{4}{10}$$ > $$\frac{0.4}{10}$$

Question 3.
81 ÷ 9 = ___

Explanation:
The first number, 81, is called the dividend.
The second number, 9 is called the divisor.
The remainder is 0
9 x 9 = 81

Question 4.
Divide 27 into 3 equal groups.
______________
27 ÷ 3 =9

Explanation:
Explanation:
The first number, 27, is called the dividend.
The second number, 3 is called the divisor.
The remainder is 0
3 x 9 = 27

Question 5.
Order the numbers from smallest to largest.
1,624; 1,264; 1,426
___ ____ ____
1,264 ; 1,426 ; 1,624
Explanation:

Question 6.
8 × = 64
8 × 8= 64
Explanation:
Multiplication and division are inversely proportional. So
8 X C = 64
C = 64 ÷ 8
C= 8

Question 7.
Circle the best estimate for the weight of the object.
100 g 2 kg 5 kg 10 kg
100 g
Explanation:
grams are basic unit to measure the weight. in given units, 100g is the basic unit.

Question 8.
Which would be the best measure for the width of your pointer finger: a foot, a degree, or a centimeter?

Question 9.
Does an angle get bigger if you make its lines longer?
______________
No. Scaling does not change angles .
Explanation:

Regardless of the construction, we then have that segment BC is a scaled version of BC with a scale factor of two and, similarly, BA is the scaled version of BA with scale factor two. Scaling does not change angles and we can see this in the picture as ABC is the same as ABC.

Question 10.
Complete the chart below to represent the shaded part of the hundred grid.

shaded part of the hundred grid in fraction is $$\frac{46}{100}$$