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Lesson Example Discussion Quiz: Class Homework

Step-4

Title: Decimal Subtraction

Grade: 4-a Lesson: S2-L3

Explanation: Let us verify the answer here with the steps.

Discussion: Step1 Step2 Step3 Step4 Step5

Step	Type	Explanation	Answer
1	Problem	Weight of Tiffany’s case is 298.6 kg and Betty’s case is 252.2 kg. How much more is the weight of Tiffiny’s case than Betty’s?
2	Clue	More implies comparison	Subtraction
3	Hint	Operator used : Subtraction	-
4	Step	Weight of Tiffany’s case	298.6 kg
5	Step	Weight of Betty’s case	252.2 kg
6	Step	Difference in weight of Tiffany’s and Betty’s cases	298.6 kg - 252.2 kg
7	Step	=	46.4
8	Step	Therefore, difference in weight of Tiffany’s and Betty’s cases	46.4 kg
9	SumUp	Can you summarize what you’ve understood in the above steps?
10	Choice.A	This option is incorrect because the actual difference is 46.4 kg, not 40.6 kg. A difference of 40.6 kg would imply a smaller discrepancy than the actual one	40.6
11	Choice.B	This option is correct because it represents the difference in the weights of Tiffany’s and Betty’s cases	46.4
12	Choice.C	This option is incorrect because the actual difference is 46.4 kg, not 56.6 kg. A difference of 56.6 kg would be significantly larger than the given weights suggest	56.6
13	Choice.D	This option is incorrect because the actual difference is 46.4 kg, not 48.4 kg. A difference of 48.4 kg would also be inconsistent with the given weights	48.4
14	Answer	Option	B
15	SumUp	Can you summarize what you’ve understood in the above steps?

Step

Type

Explanation

Answer

Problem

Weight of Tiffany’s case is 298.6 kg and Betty’s case is 252.2 kg. How much more is the weight of Tiffiny’s case than Betty’s?

Clue

More implies comparison

Subtraction

Hint

Operator used : Subtraction

Step

Weight of Tiffany’s case

298.6 kg

Step

Weight of Betty’s case

252.2 kg

Step

Difference in weight of Tiffany’s and Betty’s cases

298.6 kg - 252.2 kg

Step

46.4

Step

Therefore, difference in weight of Tiffany’s and Betty’s cases

46.4 kg

SumUp

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

Choice.A

This option is incorrect because the actual difference is 46.4 kg, not 40.6 kg. A difference of 40.6 kg would imply a smaller discrepancy than the actual one

40.6

Choice.B

This option is correct because it represents the difference in the weights of Tiffany’s and Betty’s cases

46.4

Choice.C

This option is incorrect because the actual difference is 46.4 kg, not 56.6 kg. A difference of 56.6 kg would be significantly larger than the given weights suggest

56.6

Choice.D

This option is incorrect because the actual difference is 46.4 kg, not 48.4 kg. A difference of 48.4 kg would also be inconsistent with the given weights

48.4

Answer

Option

SumUp

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

Discussion: Step1 Step2 Step3 Step4 Step5