Rounding
Round 3.45 to the nearest tenth.
3.5
3.4 - 2.1
1.3
3.4 x 2
6.8
What place value is the 2 in 23.455
Mikel split 126 candy bars among his 4 friends. How many candy bars did each friend get?
31.5
Round 45.76 to the nearest ten.
50.00
2 tenths + 11 hundredths
3.1
7.8 x 3
23.4
Thousandths
Erin charges $9.15 an hour to babysit toddlers and $7.45 an hour to babysit school-aged children.
If Erin babysat toddlers for 9 hours and school-aged children for 6 hours, how much money did she
earn in all?
$127.05
Round 23.456 to the nearest whole number.
23.00
13 tenths + 8 tenths + 32 hundredths
2.42
0.84 / 4
.21
Write 4 tens, 3 tenths, 5 hundredths, 7 thousandths in standard form.
40.357
Dr. McNair mixed 9.357 g of chemical A, 12.082 g of chemical B, and 7.502 g of chemical C to make
5 doses of medicine.
ABOUT how much medicine did she make in grams? Estimate the amount of each chemical by rounding to the nearest tenth of a gram before finding the sum. Show all your thinking.
29 g
Round 45.67 to the nearest hundredth.
45.67
3 × 10 + 0.7 × 10^2
3.07
7.7 / 4
1.925
Write 34.53 in expanded form using decimals.
3 x 10 + 4 x 1 + 5 x .1 + 3 x .01
Dr. McNair mixed 9.357 g of chemical A, 12.082 g of chemical B, and 7.502 g of chemical C to make
5 doses of medicine.
Find the actual amount of medicine mixed by Dr. McNair.
28.941g
Round 678.546 to the nearest one.
679
2 + 31 x 1/10 + 14 1/100
Use an AREA MODEL to show 4.6 x 3.
Write in....
-Standard
-Expanded
-Unit
13.8
Write 4.234 in expanded form using fractions.
4 x 1 + 2 x 1/10 + 3 x 1/100 + 4 x 1/1000
Dr. McNair mixed 9.357 g of chemical A, 12.082 g of chemical B, and 7.502 g of chemical C to make
5 doses of medicine.
Round the weight of one dose of medicine to the nearest gram.
29 g