Lesson Worksheet: Mental Subtraction of Numbers up to 10,000 Mathematics • 4th Grade

In this worksheet, we will practice using different strategies to subtract numbers with up to four digits efficiently.

Q1:

Natalie wants to calculate 4,000256. She thinks that if she changes the subtraction to 3,999255, it will be easier to calculate.

Using Natalie’s method, what is 5,0003,665?

Q2:

Chloe is calculating 54529.

She knows that it is easy to subtract 10s, so she solves the calculation in two steps: 54530=515 and 515+1=516.

Following Chloe’s method, what is 65619?

Q3:

Calculate 7,4975,234 by subtracting hundreds, tens, and ones.

Q4:

Calculate 6,798675 by subtracting hundreds, tens, and ones.

Q5:

Use <, >, or = to fill in the gap: 3,9981,2353,9981,135.

  • A<
  • B>
  • C=

Q6:

Use <, >, or = to fill in the gap: 9,3126999,312699.

  • A=
  • B>
  • C<

Q7:

Use <, >, or = to fill in the gap: 8,8797,4438,7797,343.

  • A>
  • B=
  • C<

Q8:

Use <, >, or = to fill in the gap: (5,8004,200)(4,8004,200).

  • A>
  • B<
  • C=

Q9:

Find 8,953400.

Q10:

Find 5,39741.

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