Representing Decimals
Problem Solving
Rounding Decimals
Estimating Sums
& Differences
Adding and Subtracting Decimals
100
Write the decimal thirteen hundredths in standard form
What is 0.13
100
Mike received 40 dollars for his birthday. He wants to buy headphones for 12.98 , a microphone for $11.99, and a CD for $12.95. Estimate or exact? Does he have enough money?
What is estimate and yes he has enough?
100
Round the decimal to the given place-value. 5.031; hundredths
What is 5.03
100
Find the sum, then round to the nearest tenth. 38.23 + 11.84
What is 50.07? What is 50.1
100
Add the decimals 43.28 + 31.45
What is 74.73
200
Write six and five tenths in expanded form
What is (6x1) + (5x0.1)
200
If the headphones cost $12.98, the microphone $11.99, and the CD costs $12.95, and Mike has $40, what will his change be? Exact or estimate? Change?
What is exact? $2.08
200
Round the decimal to the given place-value. 0.00042; ten-thousandths
What is 0.0004
200
Find the sum and then round to the nearest one. 75.38 + 22.04
What is 97.42? What is 97?
200
Add the decimals 0.724 + 6.458
What is 7.182
300
Write 8.051 in word form
What is eight and fifty one thousandths
300
Joe needs 8.5 lbs. of meat to make chili for his party. He has 6.5 lbs. of meat already. This is this amount he will need to have enough meat for his chili. Estimate or exact?
WHat is exact? What is 2lbs.?
300
Round the decimal to the given place-value. 27.35; tens
What is 27
300
Find the sum. Then round to the nearest hundreth. 31.297 + 58.071
What is 89.368? What is 89.37?
300
Add the Decimals 1.325 + 0.081
What is 1.406
400
Write two and twenty-one thousandths in standard form
What is 2.021
400
Zack received $50 for his birthday. He would like to purchase 2 pair of Nike Elite socks costing $14 each. He would also like to purchase a CD costing $12. Does he have enough money? Can we estimate or do we need to find an exact answer?
What estimate and yes.
400
Round 5.9273 to the nearest one
What is 6?
400
Find the difference and then round to the nearest hundreth. 1.4 - 0.422
What is 0.978? What is 0.98?
400
Subtract the decimals 148.93 - 121.36
What is 27.57
500
Write one and nine hundredths in standard form and expanded form
What is 1.09 and (1x1) + (0x0.1) + (9x0.01)
500
Pat has $10. He wants to buy a magazine for $3.25, a small pizza for $3.89, and two drinks for $1.15 each. How much change will Pat receive? Estimate or exact?
What is exact? What is exact?
500
Round the decimal to the given place-value. 2.059; hundredths
What is 2.06
500
Find the difference and round to the nearest tenth. 132.5 - 41.646
What 90.854? What is 90.9?
500
Subtract the decimals 248 - 131.48
What is 116.72