SaiBook.us Decimals

Lesson Example Discussion Quiz: Class Homework

Step-1

Title: Multiplication of decimals

Grade: 5-a Lesson: S2-L3

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 product of 100.1 and 10.5.
2	Clue	The given problem is	\$100.1 \times 10.5\$
3	Step	Ignore the decimal place and multiply the given numbers like whole numbers.
4	Step	Multiply the numbers	\$1001 \times 105 = 105105\$
5	Step	Count the number of decimal places in both the numbers	2
6	Step	Place the decimal point in the product	\$1051.05\$
7		Answer	A
8	Sumup	Can you summarize what you’ve understood in the above steps?
1	Choice.A	This option is correct because it matches the exact product of 100.1 and 10.5, which is 1051.05	1051.05
2	Choice.B	This option is incorrect because it is lower than the correct product. Specifically, 100.1×10.05 would be closer to this value, but it does not match 1051.05	1005.1
3	Choice.C	This option is incorrect because it is higher than the correct product. Specifically, 100.1×15 would be closer to this value, but it does not match 1051.05	1501.05
4	Choice.D	This option is incorrect because it is slightly lower than the correct product. Specifically, 100.1×10.15 would be closer to this value, but it does not match 1051.05	1015.05
5	Sumup	Can you summarize what you’ve understood in the above steps?

Step

Type

Explanation

Answer

Problem

Find the product of 100.1 and 10.5.

Clue

The given problem is

\$100.1 \times 10.5\$

Step

Ignore the decimal place and multiply the given numbers like whole numbers.

Step

Multiply the numbers

\$1001 \times 105 = 105105\$

Step

Count the number of decimal places in both the numbers

Step

Place the decimal point in the product

\$1051.05\$

Answer

Sumup

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

Choice.A

This option is correct because it matches the exact product of 100.1 and 10.5, which is 1051.05

1051.05

Choice.B

This option is incorrect because it is lower than the correct product. Specifically, 100.1×10.05 would be closer to this value, but it does not match 1051.05

1005.1

Choice.C

This option is incorrect because it is higher than the correct product. Specifically, 100.1×15 would be closer to this value, but it does not match 1051.05

1501.05

Choice.D

This option is incorrect because it is slightly lower than the correct product. Specifically, 100.1×10.15 would be closer to this value, but it does not match 1051.05

1015.05

Sumup

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

Discussion: Step1 Step2 Step3 Step4 Step5