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Number Sense practice · no-sign-up sample

Mental Math sample · Grades 5–6

Five short questions with a real teaching moment. On a phone, move through one clear question at a time.

Question 1 of 5

Mental multiplication - free strategy

What is 16 x 25?

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Multiply by 25 using one fourth of 100

For 16 x 25, divide 100 by 4, then use the matching group of 16.

  1. 25 is one fourth of 100.
  2. 16 divided by 4 is 4.
  3. 4 x 100 = 400.

Question 2 of 5

Multiply by 11

What is 34 x 11?

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Question 3 of 5

Fraction of a number

What is one fourth of 84?

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Question 4 of 5

Percent

What is 10% of 230?

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Question 5 of 5

Division

What is 720 divided by 9?

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