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Subtracting Tens in Three-Digit Numbers

Subtracting Tens in Three-Digit Numbers

Assessment

Interactive Video

Mathematics

3rd - 4th Grade

Hard

Created by

Thomas White

FREE Resource

The video tutorial demonstrates how to subtract multiples of 10 from three-digit numbers mentally. It covers three examples: subtracting 30 from 355, 40 from 644, and 50 from 167. The process involves identifying the number of tens in each number and subtracting the corresponding tens, resulting in a simplified mental calculation.

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the main concept introduced in this video?

Subtracting multiples of 10 from three-digit numbers

Multiplying three-digit numbers by 10

Adding multiples of 10 to three-digit numbers

Dividing three-digit numbers by 10

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the example of subtracting 30 from 355, how many tens are subtracted?

One

Four

Two

Three

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of subtracting 30 from 355?

325

335

345

315

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How many tens are initially present in the number 355?

Five

Three

Six

Four

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the difference between the tens in 355 and the tens in 325?

Three

One

Two

Four

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the example of subtracting 40 from 644, how many tens are subtracted?

Five

Four

Three

Two

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the result of subtracting 40 from 644?

634

624

614

604

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