2 tenths + 11 hundredths 0.13
>
49 meters = _______ cm
4,900 cm
Using an area model, find the product of 4.6 and 3
13.8
Use standard algorithm to solve: 4.236 ÷ 3
1.412
Dr. Mann mixed 10.357 g of chemical A, 12.062 g of chemical B, and 7.506 g of chemical C to make 5 doses of medicine.
About how much medicine did he make in grams?
Hint: Estimate the amount of each chemical by rounding to the nearest tenth of a gram before finding the sum.
Dr. Mann made about 30 grams of medicine.
342 hundredths + 7 tenths 3 + 49 hundredths
>
145.6 cm = ________ meters
1.456 meters
Use an area model to solve: 3.14 × 7
21.98
Use standard algorithm to solve: 17.45 ÷ 5
3.49
Dr. Mann mixed 10.357 g of chemical A, 12.062 g of chemical B, and 7.506 g of chemical C to make 5 doses of medicine.
Find the actual amount of medicine mixed by Dr. Mann. What is the difference between the estimate and the actual amount?
The difference is 0.075 grams.
0.3×102+0.007×103 0.3 × 10 + 0.7 × 102
<
86.23 meters = _______ mm
86,230 mm
Use an area model to solve: 9 × 5.48
49.32
Use standard algorithm to solve: 16.404 ÷ 6
2.734
Remember that there are 29.925 grams in all 5 doses.
How many grams are in one dose of medicine?
There are 5.985 grams of medicine in one dose.