1. Find 432.5 ÷ 10.
2. Find 432.5 ÷ 100.
3. Find 432.5 ÷ 1000.
4. Find 432.5 ÷ 10000.
5. Find 18.5 ÷ 5.
6. Find 106.9 ÷ 25.
7. Find 4.2 ÷ 3.
8. Find 17.6 ÷ 0.4.
9. Find 1.2 ÷ 0.2.
10. Find 1.8 ÷ 0.03.
11. A car covers a distance of 129.92 miles in 3.2 hours. What is the distance covered by it in 1 hour?
12. Jasmine was preparing a design to decorate her classroom. She needed a few colored strips of paper of length 1.8 cm each. She had a strip of colored paper of length 7.2 cm. How many pieces of the required length will she get out of this strip?
1. Answer :
432.5/10
When a number is divided by a power of 10, to get the quotient, move the point to the left by as many places as there are zeros over 1.
Since, 432.5 is divided by 10, to get the quotient, move the point one digit to the left.
432.5/10 = 43.25
2. Answer :
432.5/100
Since, 432.5 is divided by 100, to get the quotient, move the point two digits to the left.
432.5/100 = 4.325
3. Answer :
432.5/1000
Since, 432.5 is divided by 1000, to get the quotient, move the point three digits to the left.
432.5/1000 = 0.4325
4. Answer :
432.5/10000
Since, 432.5 is divided by 10000, to get the quotient, move the point four digits to the left.
432.5/10000 = 0.04325
5. Answer :
18.5 ÷ 5 = 18.5/5
In 18.5/5, the divisor 5 can be converted to 10 by multiplying 2.
So, multiply both numerator and denominator of the fraction 18.5/5 by 2.
18.5 ÷ 5 = (18.5 x 2)/(5 x 2)
= 37/10
= 3.7
6. Answer :
106.9 ÷ 25 = 106.9/25
In 106.9/25, the divisor 25 can be converted to 100 by multiplying 4.
So, multiply both numerator and denominator of the fraction 106.9/25 by 4.
106.9 ÷ 25 = (106.9 x 4)/(25 x 4)
= 427.6/100
= 4.276
7. Answer :
4.2 ÷ 3 = 42/10 ÷ 3
= 42/10 x 1/3
= 14/10
= 1.4
8. Answer :
17.6 ÷ 0.4 = 176/10 ÷ 4/10
= 176/10 x 10/4
= 176/4
9. Answer :
1.2 ÷ 0.2 = 12/10 ÷ 2/10
= 12/10 x 10/2
= 6
10. Answer :
1.8 ÷ 0.03 = 18/10 ÷ 3/100
= 18/10 x 100/3
= 6 x 10
= 60
11. Answer :
Distance covered by the car = 129.92 miles
Time required to cover this distance = 3.2 hours
So, distance covered by it in 1 hour = 129.92/3.2
= 12992/320
= 40.6 miles
12. Answer :
Number of pieces of the required length :
= 7.2/1.8
= 7.2 ÷ 1.8
= 72/10 ÷ 18/10
= 72/10 x 10/18
= 72/18
= 4
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