Subtraction Across Zeros: Box-it Method Explained

What is the primary benefit of using the box subtraction method?

• It requires less time than addition.

• It only works with small numbers.

• It eliminates the need for subtraction.

• It simplifies borrowing across zeros.

In the box subtraction method, what do you do when you encounter zeros in the tens place?

• Convert the place value to a higher denomination.

• Ignore the zeros and subtract as usual.

• Immediately write down zero as the result.

• Skip the zeros and move to the next non-zero digit.

When using the box subtraction method on the number 4010, what does '40 tens' represent?

• 4000

• 40

• 4

• 400

In the box subtraction method, what happens to the place value when you 'take one away' from a digit?

• It decreases by one.

• It remains unchanged.

• It increases by ten.

• It is multiplied by ten.

What does the transformation of 'zero tens' into '40 tens' signify in the box subtraction method?

• An optional step in the method.

• A mistake in calculation.

• A shift in decimal place.

• A borrowing from the next highest place value.

What final value does the number 4010 transform into during the example subtraction?

• 30 tens and zero in the ones place.

• 39 tens and a ten in the ones place.

• 49 tens and zero in the ones place.

• 410 tens and zero in the ones place.

How does the box subtraction method handle the subtraction of 4 from 18,000?

• By borrowing from the thousands place directly.

• By converting the entire number into tens.

• By treating the number as 810 tens.

• By ignoring the zeros and subtracting from the next available digit.

How is the number 18,000 treated in the box subtraction method when subtracting 4,264?

• As 180 hundreds.

• As 1,800 tens.

• As 810 tens.

• As 18 ones.

What is the result of subtracting 164 from 700 using the box subtraction method?

• 465

• 564

• 536

• 634

What is the outcome when subtracting 2,321 from 9,004 using the box subtraction method?

• 6,683

• 6,774

• 7,683

• 6,823