Real-world problems
8 staplers cost $50. A stapler cost 5 times as much as a box of paper clips. Find the cost of a box of paper clips.
$50 ÷ 8 = $6.25
$6.25 ÷ 5 = $1.25
A baker has 48.88 kilograms of flour. He uses 13.52 of it to make some pies. If the backer packs the remaining flour equally into 5 bags, how many kilograms of flour does each bag contain?
Remain : 48.88 - 13.52 = 35.36 kg
Each bag : 35.36 ÷ 5 = 7.072 kg
Jacob has twice as much money as Jimmy. Jimmy has $42.37 less than Jacob. How much money do they have in all?
$42.37 x 2 + $42.37 = $127.11
Ali bought 3 similar packets of nut for $4.65.
How much did 8 of these packets of nuts cost?
1 packet : 4.65 ÷ 3 = $1.55
8 packets : 1.55 x 8 = $12.4
Ana used 4.08 m of cloth to sew a dress. She used 1.2 m less cloth to sew a skirt. How much cloth did Ana need to sew 5 of these skirt?
4.08 - 1.2 = 2.88
2.88 x 5 = 14.4 m
Avery spent a total of $11.60 on 5 similar pens and a ruler. A ruler cost $1.30 less than a pen. How much did each pen cost?
Ruler = pen - $1.30
$11.60 = 5 pens and 1 ruler
$11.60 = 5 pens and (pen - $1.30)
$11.60 + $1.30 = 6 pens
$12.90 = 6 pens
$2.15 = 1 pen
The total mass of 2 similar clay pots and 2 similar metal pots is 13.2 kilograms. The mass of a clay pot is 3 times the mass of a metal pot. What is the mass of a clay pot?
metal pot : 13.2 ÷ 8 = 1.65 kg
clay pot : 1.65 x 3 = 4.95 kg
Kayla spent 1.85 hours to study with Chinese. She spent 3 times as much time to study with L.A.. How many more hours did she spend more in L.A. than
Chinese?
1.85 x 3 = 5.55
5.55 - 1.85 = 3.7 hours
Mr.Vhon has 54.39 L of liquid.
He has 3.87 L more apple juice than orange juice.
He has 8.85 more orange juice than mango juice.
How many mango juice does he have?
Keria has $583.23. He spent $382.89 for some foods. Then he share the remaining equally to himself and his 2 brothers. How much did each of them receive?
$583.23 - $382.89 = $200.34
$200.34 ÷ 3 = $66.78