Mastering 3-Digit Subtraction Through Word Problems

What operation is suggested by the phrase 'flew away'?

• Addition

• Subtraction

• Multiplication

• Division

When 'people came', which mathematical operation is implied?

• Subtraction

• Addition

• Division

• Multiplication

How do we solve if a number is 'fewer than' another?

• Multiplication

• Subtraction

• Division

• Addition

What is the first step in solving 657 - 129 using a model?

• Regroup the tens

• Draw the minuend

• Draw the subtrahend

• Subtract the ones

In the problem 724 - 218, why do we need to regroup?

• Not enough ones

• Not enough hundreds

• To make subtraction easier

• Not enough tens

What irrelevant information is provided in the planetarium problem?

• The sky show

• Number of children in the afternoon

• Number of adults

• Number of children in the morning

How do we find the initial number of pencils in the box?

• Divide 129 by 26

• Add 26 to 129

• Subtract 26 from 129

• Multiply 26 by 129

What indicates a subtraction problem in the context of 'gave away'?

• The word 'away'

• The initial number of pencils

• The number of pencils left

• The word 'gave'

How many slices of pizza were cheese if 138 were pepperoni out of 379?

• 241 slices

• 239 slices

• 237 slices

• 245 slices

What is the importance of placing a zero in the tens place when applicable?

• To correct the place value

• To avoid confusion

• To increase the number

• To make subtraction easier