L52 - Homework (02/14)

Thao made 5 dozen baked apples and gave 24 to a friend. How many baked apples did she have left?

(Hint: 5 dozen = 12 + 12 + 12 + 12 + 12)

• (5 x 12) - 24 = 36 baked apples

• 5 + 24 - 5 = 24 baked apples

Marco weights 120 pounds. His younger brother weighs one half as much. How much does his brother weigh?

• 120 ÷ 2 = 60 lbs

• 120 x 2 = 240 lbs

Hope bought a chain or $4.60 and a lock for $5. How much should she get back in change from a $10 bill?

(Hint: Parentheses first!)

• $10 - ($4.60 + $5) = $0.40

  Or: $10 - $4.60 - $5 = $0.40

• $10 - $4.60 + $5.00 = $10.40

In 1607, Captain John Smith led a group of British explorers who settled in Jamestown, Virginia. How many centuries are there from the year 1607 to the year 2007?

• 2007 - 1607 = 400 years = 4 centuries

• 2007 + 1607 = 3614 years = 36 centuries

Name the value of the place held by the zero in 102,345,678.

• Hundred millions

• Ten millions

• One millions

Write (1 x 100) + (4 x 10) + (8 x 1) in standard form.

Write two hundred and fifty thousand.

What is the average of 4, 9 and 2?

(Add them, and then divide by 3).

Which digit in 789,456,321 shows the number of hundred millions?

Round 1236 to the nearest hundred.