To solve 27 \times 4 , a student uses the following strategy: 27 \times 4 \to 30 \times 4 \to 120 3 × 4 → -12 108 She says aloud the answer is 108 . Which of the following is most appropriate for the strategy used by the student?

Correct Answer is : The student has used compensation strategies for multiplication

The student has estimated the answer through this strategy

The student has used compensation strategies for multiplication

The student has arrived at the answer by hit and trial method

It is an inappropriate algorithm to solve a problem on multiplication

CTET Class I to V 12 Jan 2022 Paper

Question : 47 of 150

Marks: +1, -0

To solve

27 × 4

, a student uses the following strategy:

27 × 4 → 30 × 4 → 120

3 × 4 → -12
108
She says aloud the answer is 108 .
Which of the following is most appropriate for the strategy used by the student?

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