Unit 2 Math Test

Answer the number riddle I am a 5-digit number. My 3 is worth 3 x 10,000. My 4 is worth 4,000. One of my 2s is worth 20. The other 2 is worth 10 times as much. My other digit is 7. What number am I?

• 53,447
• 32,277
• 34,340
• 34,227

Solve the following number riddle. I am a 6-digit number. One of my 7s is worth 700,000. The other 7 is worth 1/10 as much. My 8 is worth 8 x 100. My 9 is worth 90. My other digits are 0. What number am I?

• 770,890
• 770,089
• 77,890
• 67,890

Jesse, collects cans for recycling. When he has 1,500 cans, the recycling center will pick them up from his house. Jesse has 120 bags with about 35 cans in each bag. Should he call the recycling center to arrange a pick-up?

• Yes, Jesse has more than enough cans.
• Yes, Jesse has exactly 1,500 cans.
• No, Jesse does not have enough cans.
• No, Jesse needs to collect twice as many cans.

What is 6,125 written in expanded form?

• (6 x 1,000) x (1 x 100) x (2 x 5) x (5 x 1)
• (6 x 1,000) + (1 x 100) + (2 x 10) + (5 x 1)
• (6 + 1,000) + (1 + 100) + (2 + 10) + (5 + 1)
• ( 1,000 - 6) x (100 - 1) x (10 - 2) + (5 - 1)

Which of the following is the same as

• 4,108
• 4,000,010
• 40,000,000
• 400,000,000

Which number would go in the box to make the equation true?

• 2
• 3
• 5
• 10

Jamella has the following problem on her math test. She say that the answer is 6,240,000. Is she correct?

• Yes, because you would multiply 624 by 1 and then put 4 zeros behind it for the 4th power of 10.
• Yes, because you would multiply 624 by 400.
• No, she added too many zeros; the correct answer is 624,000.
• No, she did not add enough zeros; the correct answer is 62,400,000.

The product of 38 and 9 is

• Less than 270 because 38 rounds to 30, and 30 x 9 = 270.
• Less than 360 because 38 rounds to 40, and 40 x 9 = 360
• More than 380 because 9 rounds to 10, and 38 x 10 is 380.
• Between 400 and 500 because 38 rounds to 40 and 9 rounds to 10, and 40 x 10 = 400

Andy burns 476 calories in 1 hour of swimming. He swam for 32 hours last month. How many calories did Andy burn in all last month from swimming?

• 1,380
• 2,380
• 14,332
• 15,232

.

• 10
• 10 x 10
• 10 x 10 x 10
• 10 x 10 x 10 x 10