Estimating
Adding or Subtracting
Multiplying/Dividing
Dividing Decimals
Scientific Notation
100
Estimate to the nearest whole number. 6.499 + 3.099 = ?
What is 9?
100
Find each sum or difference. 2.17 + 3
What is 5.17?
100
If I multiply 0.5 and 0.3, how may decimal places will my product have?
What is 2 decimal places?
100
Find the quotient. 2 ÷ 0.5
What is 4?
100
85 is in standard form. Show this number in scientific notation.
What is 8.5 X 10 to the first power?
200
Estimate to the nearest whole number. 110.033 + 28.9
What is 139?
200
Find each sum or difference. 0.46 + 15.001
What is 15.461?
200
Find each product or quotient. 0.6 x 0.4
What is 0.24?
200
Find the quotient. 17.8 ÷ 3.1
What is 6?
200
Write the number in scientific notation. 870,000
What is 8.7 x 10 to the 5th power.
300
Estimate to the nearest tenth. 6.84 x 1.49
What is 10.2?
300
Find each sum or difference. 9.501 - 9.45
What is 0.051?
300
Find each product or quotient. ÷ 60.3 ÷ 9
What is 6.7?
300
Find the quotient. 5.68 ÷ 8
What is 0.71?
300
Write the number in scientific notation. 0.00345
What is 3.45 x 10 to the negative 3rd power.
400
Estimate to the nearest whole number. 615 ÷ 5.4
What is 123?
400
Find each sum or difference. 46.9 - 28.73
What is 18.17?
400
Find each product or quotient. ÷ 5.43 ÷ 15
What is 0.362?
400
Find the quotient. 24.2 ÷ 55
What is 0.44?
400
Write the number in scientific notation. 0.00009001
What is 9.001 x 10 to the negative 5th power.
500
Sam used rounding to estimate that 330 ÷ 9 is about 33. Do you think this is a good estimate?
What is yes because 9 rounds up to 10 and 330 ÷ 10 is 33.
500
Mr. Smith gave the cashier a $50 bill for his purchase of $38.70. How much change did her receive?
What is $11.30?
500
Mrs. Pearson bought 88 ounces of fish food for her goldfish. How many punds of fish food did she buy? (Hint: 1 pound = 16 ounces.)
What is 5.5 pounds?
500
In a division problem, if I have 0.345 in my divisior, how many times must I move my decimals in the dividend?
What is 3 times?
500
Saturn travels in an oval path around the sun. Its mean distance is 1.4294 x 10 to the 9th kilometers. Show this number in standard form.
What is 1,429,400,000?
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