Estimation and Calculation Strategies

Estimation and Calculation Strategies

Assessment

Interactive Video

Created by

Thomas White

Mathematics

3rd - 4th Grade

Hard

The video tutorial explains how to determine whether to estimate or calculate an exact answer in math problems by identifying clue words. The word 'about' signals the need for estimation, while its absence indicates an exact calculation. Two examples are provided: one involving estimation and the other requiring an exact answer. The tutorial concludes with a reminder to use estimation when 'about' is present and to solve exactly when it is not.

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15 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What are the two main choices in problem-solving discussed in the video?

Multiplying or dividing

Adding or subtracting

Guessing or checking

Estimating or calculating exactly

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which clue word indicates that you should estimate rather than calculate exactly?

Exactly

About

Precisely

Approximately

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the dog and cat example, what is the estimated weight of the dog?

85 pounds

80 pounds

75 pounds

70 pounds

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in solving the estimation problem in the dog and cat example?

Add the numbers directly

Multiply the numbers

Round the numbers

Subtract the numbers

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of rounding numbers in estimation?

To decrease accuracy

To simplify calculations

To make calculations harder

To increase accuracy

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the rounded value of 57 in the dog and cat example?

55

50

65

60

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the rounded value of 23 in the dog and cat example?

35

30

25

20

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