Decimals
Which is greater: 0.45 or 0.045?
What is the perimeter of a rectangle with length 5 cm and width 3 cm?
16 cm
Write an expression for "3 more than a number x."
3+x
Write 3.42 x 104 in standard form.
34,200
If a book costs $15 and you have $50, how much money will you have left after buying 2 books?
$20
Round 0.678 to the nearest hundredth.
0.68
What is the area of a square with sides of 9 cm?
81 cm
Evaluate the expression 3a−2 when a=4.
10
Write 3000 in scientific notation.
3 x 103
If a train leaves at 2:00 PM and arrives at 4:30 PM, how long is the trip?
2 hours 30 minutes
Subtract 0.6 from 2.9.
Convert 1500 grams to kilograms.
1.5 kg
What is 4×(2+3)?
20
Evaluate 55
3125
If a car travels 60 miles per hour for 2.5 hours, how far does it go?
150 miles
Multiply 0.03 by 0.4.
0.012
Convert 250 milliliters to liters.
0.25 L
Evaluate 10−2×(3+1).
2
Write 7500000 in scientific notation.
7.5 x 106
If you buy 3 shirts for $20 each and pay $5 for tax, how much do you spend in total?
$65
Divide 3.6 by 0.9.
4
Convert 2.5 kilometers to millimeters.
2,500,000 mm
Evaluate [2 + 152 - (12 x 2)].
130
What is the value of 25?
32
If a recipe needs 3 cups of flour and serves 4, how much is needed for 10 servings?
7.5 cups