Math Quiz

Determine if each equation is true or false.

50 x 20 = 1,000

• True

• False

Determine if each equation is true or false.

25 x 40 = 1,000

• Correct

• Incorrect

Determine if each equation is true or false.

30 x 20 = 600

• Correct

• Incorrect

Determine if each equation is true or false.

45 x 80 = 3,600

• Correct

• Incorrect

Mr. Gardner has 35 boxes of markers in his supply cabinet. Each box contains 25 markers. How many markers are in the supply cabinet?

(a)  

What is the best estimate for 625 × 19?

• 600 × 20 = 12,000

• 650 × 20 = 13,000

• 600 × 15 = 9,000

• 700 × 20 = 14,000

Dani uses partial products to find 41 × 23. Which equation shows the partial products and the answer to Dani’s multiplication problem?

• 80 + 120 + 2 + 3 = 905

• 800 + 120 + 20 + 3 = 943

• 8,000 + 1,200 + 200 + 3 = 9,205

• 8,000 + 12,000 + 20 + 30 = 20,050

Sam uses partial products to calculate 52 × 14. Which equation shows the partial products and the answer to Sam’s multiplication problem?

• 500 + 20 + 40 + 8 = 568

• 500 + 200 + 20 + 8 = 728

• 5,000 + 200 + 40 + 8 = 5,248

• 5,000 + 2,000 + 40 + 80 = 7,120

Emily has 15 apples. Sarah has 12 times as many apples as Emily. How many apples does Sarah have?

(a)  

Tatum wants to use partial products to find 120 × 36. What expression can he use to find the partial products? (100 × ______) + (100 × ______) + (______ × ______) + (______ × 6)

• (100 × 30) + (100 × 6) + (20 × 30) + (20 × 6)

• (100 × 36) + (20 × 36)

• (120 × 30) + (120 × 6)

• (100 × 20) + (30 × 6)