Subtraction Strategies

Front

What is subtraction?

Back

Subtraction is taking away a number from another number.

Front

When you subtract, is your answer always bigger than the number you started with?

Back

No, the answer is smaller.

Front

What is a number line?

Back

A number line is a straight line with numbers placed at equal intervals.

Front

What does 'count-back' mean in subtraction?

Back

Count-back means to subtract by counting backwards on a number line.

Front

What does 'count-on' mean in subtraction?

Back

Count-on means to add up from the smaller number to find the answer.

Front

What are base-10 blocks?

Back

Base-10 blocks are tools used to help understand numbers and perform operations like addition and subtraction.

Front

What is the purpose of using a number line in subtraction?

Back

A number line helps visualize the subtraction process and find the answer.

Front

What is the result of 87 - 12?

Back

75

Front

If Kamila has $116 and buys shoes for $55, how much does she have left?

Back

$61

Front

Which of these is NOT a subtraction strategy: Number lines, Base-10 blocks, Guessing any answer?

Back

Guessing any answer is NOT a strategy.