Multiplication Problem Solving

Which numerical expression is equivalent to the one below? 3 × (15 + 8)

• (3+15)+(3+8)
• (3x15)+(3x8)
• (3 × 15) × (3 × 8)
• (3 + 15) × (3 + 8)

Which costs more, 2 digital cameras or 4 mobile phones?

• 2 digital cameras
• 2 mobile phones
• 4 digital cameras
• 4 mobile phones

Tags

CCSS.3.OA.A.1

CCSS.3.OA.A.3

CCSS.3.OA.B.5

CCSS.3.OA.C.7

CCSS.3.OA.D.8

A pet store has 9 large fish tanks. In each fish tank, there are 423 fish. How many fish are in all the fish tanks?

• 3,600 fish
• 3,687 fish
• 3,807 fish
• 3,825 fish
  3,825 fish
  3,825 fish
  3,825 fish
  3,825 fish

 A hotel has 128 rooms on each floor. There are 4 floors in all. If 334 of the rooms in the hotel have been cleaned, how many rooms still need to be cleaned?

• 178
•  206
•  384

Mark had 45 football cards. Josh had twice as many football cards as Mark. Josh then bought 5 more football cards. Which equation can be used to find f, the number of football cards Josh has now?

•  2 × 45 + 5 = f
    2 × 45 + 5 = f
   2 × 45 + 5 = f
• 2 × 45 -  5 = f
• 2 + 45 × 5 = f
  2 + 45 × 5 = f
  2 + 45 × 5 = f
  2 + 45 × 5 = f
  2 + 45 × 5 = f
  2 + 45 x 5= f

Diane worked 18 hours each week during the summer. She worked a total of 8 weeks and earned $9 an hour. How much money did Diane earn during the summer?

• $306
• $1,296
   $1,296
• $1,386

Tags

CCSS.3.OA.A.3

CCSS.3.OA.C.7

CCSS.3.OA.D.8