Word Problems
Shirley bought 20.8 pounds of bird seed at a bargain store. She wants to fill her feeder 100 times with an equal amount. How much seed should she put in the feeder each time?
(write an equation and explain how the decimal point moves)
20.8 ➗100 =.208 pounds of bird seeds
Since I am dividing by 100 (which has two zeros), I will move the decimal to the left two places.
1.8 ÷0.9=
2
12.6 ÷ 7=
1.8
3 ÷ 0.4=
7.5
13.9 ÷10
Explain how you solved your answer.
1.39
Since I divided by 10, I moved the decimal one place to the left.
Jason scored a total of 32.70 points in 5 events during the state gymnastic competition. If he had the same number of points for each event, what was his score for each event?
He scored 6.54 points for each event.
The chef of a restaurant bought 37 pounds of salad for $46.25. How much did she pay for 1 pound of salad?
$1.25
51.2 ÷ 8=
6.4
306 ÷ 1.8=
170
14.7 ÷ 102=
0.147
Jen says that the decimal point in the following problem belongs after the 4. Is she correct?
43.68÷5.2= 84.0
(use estimation)
No, if you use rounding 40 ÷5= 8 so the decimal goes in between the 8 and 4
8.40
0.68 ÷ 0.2 =
3.4
51.6÷43=
1.2
What is the best estimate for 78.4÷18=
Use rounding
80÷20= 4
Jamal uses 7.56 liters of milk to make milkshakes for him and 11 friends. Estimate how much milk each milkshake will need.
8 ➗10 =0.8 liters of milk
1.96÷ 0.07 =
28
12.72÷3.6
Use compatible numbers
12÷4=3
Jamal uses 7.56 liters of milk to make milkshakes for him and 11 friends. Find the exact amount of milk each milkshake uses.
0.63 Liters of milk
2.25÷1.5=
1.5
What we do for the divisor, we must do for the________
dividend (balance both sides when moving decimal)