Cross Multiplication and Problem Solving

Cross Multiplication and Problem Solving

Assessment

Interactive Video

Mathematics

6th - 7th Grade

Hard

Created by

Thomas White

FREE Resource

The video tutorial explains how to solve a cross-multiplying problem involving filling a pool with water. It begins by setting up fractions based on the given rates and measurements, then demonstrates the cross multiplication process. The tutorial further explains how to use long division to find the solution and concludes by verifying the result.

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the rate at which water comes out of the hose?

2 inches per hour

1 inch per hour

3 inches per hour

2.5 inches per hour

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many inches does the pool need to be filled?

25 inches

50 inches

100 inches

75 inches

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in solving the problem using cross multiplication?

Set up the fractions

Subtract the fractions

Add the fractions

Multiply the fractions

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where should the 50 inches be placed in the fraction setup?

On the numerator of the first fraction

On the denominator of the first fraction

On the denominator of the second fraction

On the numerator of the second fraction

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What operation is performed after setting up the fractions?

Division

Cross multiplication

Subtraction

Addition

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the equation formed after cross multiplying?

2.5 + X = 50

X - 2.5 = 50

2.5 * X = 50

X = 50 * 2.5

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the next step after forming the equation 2.5 * X = 50?

Add 2.5 to both sides

Subtract 2.5 from both sides

Divide both sides by 2.5

Multiply both sides by 2.5

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