subtraction

Multiple Choice

Which of the following is a correct way to subtract numbers within 20?

• 15 - 7 = 8

• 18 - 12 = 5

• 20 - 5 = 14

• 13 - 4 = 9

Multiple Choice

Which strategy is suggested for solving subtraction problems like 8 - 2 or 13 - 2 in the lesson?

• Count-back strategy

• Addition strategy

• Multiplication strategy

• Guess and check

Multiple Select

Which of the following can be used to help you count back when subtracting, according to the lesson?

• Dots

• Fingers

• Counters

• Ms. Marissa's cat

Multiple Choice

What is the difference when you subtract 18 - 16 using the count-up strategy?

• 2

• 3

• 4

• 1

Multiple Choice

Which strategy is used when subtracting two numbers that are close together?

• Count-up strategy

• Count-down strategy

• Skip counting

• Doubling strategy

Multiple Select

Which of the following are true about fact families?

• They use three numbers to make four related facts.

• They always include two addition and two subtraction sentences.

• They can use any three numbers.

• They help us understand the relationship between addition and subtraction.

Multiple Select

Which of the following are correct doubles subtraction facts?

• 12 - 6 = 6

• 8 - 4 = 4

• 16 - 8 = 8

• 14 - 8 = 6

Multiple Choice

What is the related addition doubles fact for the subtraction problem 14 - 7 = 7?

• 7 + 7 = 14

• 6 + 6 = 12

• 8 + 8 = 16

• 5 + 5 = 10

Multiple Choice

What happens when you subtract zero from a number?

• The number stays the same.

• The number becomes zero.

• The number increases by one.

• The number decreases by one.

Draw

Solve 18-6

Poll

How do you feel about subtraction?