1st Grade Subtraction pop up Quiz

When subtracting tens, what is the easiest way to count back?

• By counting forward from the smaller number

• By counting backward from the larger number

• By counting forward by ones

• By counting backward by ones

Liam, Benjamin, and Olivia went to a bakery. Liam bought a cake for $10. Benjamin bought a pie for $20. How much money did Olivia spend if she bought a cookie for $30?

• $10

• $20

• $30

• $40

What is the result of subtracting 30 from 80?

• 20

• 30

• 50

• 60

Abigail, Grace, and James are learning subtraction using models. Which model can be used to subtract tens?

• Base-10 blocks

• Clocks

• Rulers

• Thermometers

What happens when you subtract ten from a number?

• The number gets smaller

• The number gets bigger

• The number stays the same

• It depends on the number

William has 50 candies and he gives 10 candies to Ava. How many candies does William have left?

• 10

• 20

• 30

• 40

How many tens are in 70?

• 3

• 5

• 7

• 10

Which model shows the regrouping of 1 ten to 10 ones when subtracting?

• Number line

• Fraction circles

• Place value chart

• Hundred chart

What is the result of subtracting 40 from 90?

• 10

• 20

• 30

• 50

What does it mean to "regroup tens as ones"?

• To break up ones into tens

• To exchange tens for ones

• To combine tens and ones into a single number

• To multiply tens and ones together