Math Refresher!! OA and NB

What is the missing number in

30x5=__

• 150

• 300

• 15

What is 56÷8=__

• 6

• 7

• 8

• 56

Which expression represents the array above?

• 5x3

• 3x5

• 3x4

• 4x3

Which expression is equal to this array?

• 5x4

• 5x5

• 3x5

• 4x5

What is the missing number?

500-25=_____

• 300

• 425

• 475

• 350

Round to the nearest hundred.

528

Draw a number line! :)

• 600

• 500

• 550

• 530

Which expression is equal to 5 × 14?

• 5 × (10 + 4)

• (5 × 10) × 4

• (5 × 1) + (2 × 7)

• (5 × 4) × (5 × 10)

When rounding to the nearest ten, what is the least whole number that rounds to 80?

• 74

• 75

• 84

• 85

When rounding to the nearest ten, what is the greatest whole number that rounds to 80?

• 75

• 74

• 84

• 85

What makes this equation true?

8x5=__

• 35

• 45

• 40

• 8