Dividing by decimals

Dividing by decimals

Assessment

Interactive Video

Mathematics

1st - 9th Grade

Hard

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The video tutorial helps a tailor determine how many dresses can be made from a piece of cloth by dividing the total cloth length by the cloth needed per dress. It explains handling decimal numbers in division by converting the divisor into a whole number, then performing the division step-by-step. The process involves examining digits, multiplying, subtracting, and repeating until the quotient is found, which gives the number of dresses possible.

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the initial problem the tailor is trying to solve?

How many dresses can be made from a specific length of cloth

How to measure cloth

How to cut cloth into pieces

How to sew a dress

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in dividing decimal numbers?

Multiply the numbers

Add the numbers

Move the decimal point to make the divisor a whole number

Subtract the numbers

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Why do we multiply both the dividend and divisor by 100 in this example?

To make the divisor a whole number

To reduce the number of steps

To make the dividend larger

To simplify the multiplication

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What do you do after examining the first three digits of the dividend?

Add them to the divisor

Ignore them

Multiply them by 10

Write the quotient on top and multiply by the divisor

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the final result of the division process in this example?

19 dresses

18 dresses

20 dresses

15 dresses