SaiBook.us Decimals

Lesson Example Discussion Quiz: Class Homework

Step-5

Title: Multiplication of Decimals

Grade: 5-a Lesson: S2-L8

Explanation: Hello Students, time to practice and review the steps. Let us take next 2-5 minutes to solve the steps for the problems. This is a good exercise to check your understanding of the concepts.Second student to identify and review important steps.Focus on understanding the concepts and application to solving problems step by step.

Discussion: Step1 Step2 Step3 Step4 Step5

Lesson Steps

Step	Type	Explanation	Answer
1	Problem	Find the missing number: 187.2 × ? = 441.792
2	Clue	The given problem is	187.2 × ? = 441.792
3	Step	The missing number be represented by x	187.2 × x = 441.792
4	Step	Solve for x and divide 187.2 on both sides of the equation:	x = \$(187.2 \times x)/187.2 = 441.792/187.2\$
5	Step	After simplification we get,	x = 2.36
6	Step	The missing number is 2.36. Therefore,187.2 × 2.36 = 441.792
7		Answer	B
8	Sumup	Can you summarize what you’ve understood in the above steps?
1	Choice.A	This is not the correct missing number. If you multiply 187.2 by 4.56, you’ll get a number much higher than 441.792	4.56
2	Choice.B	This is the correct missing number. When you multiply 187.2 by 2.36, you get 441.792	2.36
3	Choice.C	This is not the correct missing number. If you multiply 187.2 by 3.24, the result will be higher than 441.792	3.24
4	Choice.D	This is also not the correct missing number. If you multiply 187.2 by 1.5, the result will be lower than 441.792	1.5
5	Sumup	Can you summarize what you’ve understood in the above steps?

Step

Type

Explanation

Answer

Problem

Find the missing number: 187.2 × ? = 441.792

Clue

The given problem is

187.2 × ? = 441.792

Step

The missing number be represented by x

187.2 × x = 441.792

Step

Solve for x and divide 187.2 on both sides of the equation:

x = \$(187.2 \times x)/187.2 = 441.792/187.2\$

Step

After simplification we get,

x = 2.36

Step

The missing number is 2.36. Therefore,187.2 × 2.36 = 441.792

Answer

Sumup

Can you summarize what you’ve understood in the above steps?

Choice.A

This is not the correct missing number. If you multiply 187.2 by 4.56, you’ll get a number much higher than 441.792

4.56

Choice.B

This is the correct missing number. When you multiply 187.2 by 2.36, you get 441.792

2.36

Choice.C

This is not the correct missing number. If you multiply 187.2 by 3.24, the result will be higher than 441.792

3.24

Choice.D

This is also not the correct missing number. If you multiply 187.2 by 1.5, the result will be lower than 441.792

1.5

Sumup

Can you summarize what you’ve understood in the above steps?

Discussion: Step1 Step2 Step3 Step4 Step5