Subtraction Strategies

When you subtract, your answer is BIGGER than the number you started with.

• True

• False

Which of these is NOT a strategy or tool we can use to subtract?

• Number lines

• Base-10 blocks

• Stacking

• Guessing any answer you want

Which of these numbers is 20 less than 471?

• 451

• 271

• 461

• 470

Nathan drew this number line to solve 87 - 12. Which number-line strategy did he use to solve?

• Count-on

• Count-back

Kamila has $116 and she wants to buy new shoes that cost $55. About how much money would she have left?

• $50

• $100

• $60

• $12

Nisa wants to solve 524 - 26 using count-back on a number line. Which of these jumps would NOT make sense?

• 2 jumps of 10

• 6 jumps of 1

• 1 jump of 20

• 1 jump of 15

Rylan wants to solve 164 - 35 using base-10 blocks. Will he need to regroup?

• Yes

• No

What number is 100 less than 882?

• 772

• 782

• 872

• 982

Solve this subtraction problem using any strategy: 193 - 28.

• 221

• 175

• 173

• 165

Answer explanation