# Add or Subtract 100, 10 or 1 To or From a Number (4)

In this worksheet, students add or subtract 100, 10 or 1 to or from a given number.

Key stage:  KS 2

Curriculum topic:   Number: Number and Place Value

Curriculum subtopic:   Find 10 or 100 More or Less than a Given Number

Difficulty level:

### QUESTION 1 of 10

In this worksheet you have to add or subtract 100, 10 or 1 to or from a number.

When we add or subtract 100, it is the hundreds digit that we change.

When we add or subtract 10, it is the tens digit that we change.

When we add or subtract 1, it is the units digit that we change.

Remember that other digits may have to change too.

Example 1

What number is 100 less than 750?

Reduce 7 hundred by 1 hundred to get 6 hundred...

750 becomes 650

Example 2

What number is 10 more than 539?

Increase 3 tens by 1 ten to get 4 tens...

539 becomes 549

Example 3

What number is 1 less than 539?

Reduce 9 units by 1 unit to get 8 units...

539 becomes 538

Example 4

What number is 10 less than 405?

Here we have to be careful, because we can't reduce the tens digit by 1.

So include the hundreds digit.

Think of it as reducing 40 tens by 1 ten to get 39 tens.

405 becomes 395

What number is 100 more than 584?

What number is 100 more than 361?

What number is 10 more than 539?

What number is 1 more than 759?

What number is 10 less than 822?

What number is 1 less than 750?

What number is 100 less than 192?

What number is 100 less than 577?

What number is 10 less than 776?

What number is 10 less than 104?

• Question 1

What number is 100 more than 584?

684
EDDIE SAYS
Increase 5 hundred by 1 hundred to get 6 hundred...
584 becomes 684
• Question 2

What number is 100 more than 361?

461
EDDIE SAYS
Increase 3 hundred by 1 hundred to get 4 hundred...
361 becomes 461
• Question 3

What number is 10 more than 539?

549
EDDIE SAYS
Increase 3 tens by 1 ten to get 4 tens...
539 becomes 549
• Question 4

What number is 1 more than 759?

760
EDDIE SAYS
Increase 59 units by 1 unit to get 60 units...
759 becomes 760
• Question 5

What number is 10 less than 822?

812
EDDIE SAYS
Reduce 2 tens by 1 ten to get 1 ten...
822 becomes 812
• Question 6

What number is 1 less than 750?

749
EDDIE SAYS
Reduce 50 units by 1 unit to get 49 units...
750 becomes 749
• Question 7

What number is 100 less than 192?

92
EDDIE SAYS
Reduce 1 hundred by 1 hundred to get 0 hundreds...
192 becomes 092 which we just write as 92
• Question 8

What number is 100 less than 577?

477
EDDIE SAYS
Reduce 5 hundred by 1 hundred to get 4 hundred...
577 becomes 477
• Question 9

What number is 10 less than 776?

766
EDDIE SAYS
Reduce 7 tens by 1 ten to get 6 tens...
776 becomes 766
• Question 10

What number is 10 less than 104?

94
EDDIE SAYS
Reduce 10 tens by 1 ten to get 9 tens...
104 becomes 94
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