Powers of 10
Numerical Expressions
Word Problems
Multiplying decimals
Fractions
100
Evaluate.
104
10,000
100
Evaluate the expression.
9+(6+5×9)
60
100
During an average summer day, people in Middletown use 15,097 kilowatts of electricity from water and 42,526 kilowatts from coal. In total, how many kilowatts of electricity does the city use on an average summer day?
57,623 kilowatts
100
Multiply:
4.9×4
19.6
100
Multiply. Write your answer as a fraction or as a whole or mixed number.
4 × 1/4
1
200
Evaluate.
108
100,000,000
200
Evaluate the expression.
10×(7+9–6)
100
200
There was an oil spill in a coral reef. As a result, it cost the oil company a combined total of $87,402 in cleanup and repairs. The repairs alone cost $5,651. How much money did the cleanup cost?
The cleanup cost $81,751
200
Multiply:
0.2× 0.3
.06
200
Divide.
1/5 ÷ 4
1/20
300
Find the missing exponent.
10?=100,000
5
300
Evaluate the expression.
7÷(6+1)×8
8
300
This morning, a fortune cookie factory produced 461,565 cookies. After lunch, it produced another 84,587 fortune cookies. In total, how many fortune cookies did the factory make today?
The factory made 546,152 fortune cookies today
300
Divide. Give the exact answer, written as a decimal.
5÷12
2.4
300
Subtract.
2/3 – 4/9
2/9
400
Find the missing exponent.
10?=10,000,000
7
400
Evaluate the expression.
6+9×2–(10+3)
11
400
How much does it cost to buy 2 piggy banks if each piggy bank costs $7.69?
It cost $15.38.
400
Multiply:
1.9× 0.6
1.14
400
Add. Write your answer as a fraction or as a whole or mixed number.
1/5 + 3/8
23/40
500
Find the missing exponent.
10?=1,000,000,000
9
500
Evaluate the expression.
7+(6×9+10)–7
64
500
Sebastian buys 3 pieces of cornbread. The pieces all have the same price. He spends a total of $1.59. What is the cost of each piece?
Each piece cost $.53
500
Divide. Give the exact answer, written as a decimal.
6÷242.4
40.4
500
Subtract. Write your answer in simplest form
4 − 1/7
3 6/7