# 180 Days of Math for Fourth Grade Day 67 Answers Key

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## 180 Days of Math for Fourth Grade Answers Key Day 67

Directions Solve each problem.

Question 1.
23 + 17 = ___ Explanation:
The sum of 23 and 17 is 40
Ones Place Value
3 + 7 = 10
Put the 0 in Ones place
Carry the 1 to Tens place
Tens Place Value
1 + 2 + 1 = 4
Put the 4 in Tens place

Question 2.
$$\frac{1}{2}$$ 0f 14 is ____
$$\frac{1}{2}$$ 0f 14 is
Explanation:
$$\frac{1}{2}$$ x $$\frac{14}{1}$$
cross multiplied both sides
$$\frac{1}{2}$$ x $$\frac{14}{1}$$  = $$\frac{14}{2}$$
$$\frac{14}{2}$$ = 7

Question 3.
14 ÷ 2 = ___ Explanation:
The first number, 14, is called the dividend.
The second number, 2 is called the divisor.
The quotient is 7
and the remainder is 0

Question 4.
Divide 50 by 10. _______ Explanation:
The first number, 50, is called the dividend.
The second number, 10 is called the divisor.
quotient is 5
and the remainder is 0.

Question 5.
How many digits are in the number 2,967?
______________
There are 4 digits in the number 2967
Explanation:
2,967 (two thousand nine hundred sixty-seven) is an odd four-digits composite number following 2966 and preceding 2968

Question 6.
45 – = 40
45 – 5 = 40
Explanation:
45 – 40 = 5
so, we have to subtract 5 from the number 45

Question 7.
How many Mondays are in February?
________________  Explanation:
There are 4 Mondays in the month of February

Question 8.
Trish starts to watch TV at 7:30 P.M. and ends at 8:10 P.M. How long did she watch?
________________
She watched 40 minutes.
Explanation:
The formula for calculating elapsed time is elapsed time = end time – start time. Subtract the minutes and hours separately.
8 : 10 – 7 : 30 =0 : 40 P.M.

Question 9.
Name this shape.
______________ Trapezoid
Explanation:
A trapezoid is a quadrilateral with one pair of opposite sides parallel. It can have right angles (a right trapezoid), and it can have congruent sides (isosceles), but those are not required.

Question 10.
Our sum is 13. The difference between us is 1. What numbers are we?
________________