Subtraction Decimal word problems

WALT solve decimal word problems.

Decimal word problems

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Subtraction
Question	Workspace
1. Katherine bought cosmetic items which cost $78.12 in total. She gave $100 to the shop keeper. How much does she receive as change? Answer: 21.88	100.0 -78.12 = 100.0 - .12 = 99.88 99.88 - 78.00 =21.00
2. Kelly scored 56.73 points and Karen scored 74.92 points on a University exam. How many points less did Kelly score than Karen? Answer:18.19	74.92 - 56.73 .92 - .73 = .19 74 - 56 = 18.0 18.0 + .19 = 18.19
3. A mixture is obtained by mixing two products A and B respectively. Product A weighs 234.56 grams and the mixture weighs 988.76 grams. How much does Product B weigh? Answer:754.20	988.76 - 234.56 .76 - .56= .20 988 - 234 = 900-200 = 700 80-30 = 50 8-4 =4 754 + .20 = 754.20
4. David’s home is 12.53 miles away from the lake and 16.73 miles away from his school. How far is David’s school from the lake? Answer: 4.20	12.53 -16.73= .73 - .53 =.20 16 - 12 = 4.00 4.00 + .20 = 4.20

Addition Decimal word problems

WALT solve decimal word problems.

Decimal word problems

Show your working

Addition
Question	Workspace
1. Samson bought 3 bags which cost $12.30, $34.23 and $23.19. How much did he need to pay? Answer: 9.72	12.30 + 34.23 .30 + .23 = .53 12+34= 46+.53= 46.53 46.53 + 23.19= .53 + .19= .72 46 + 23=69 + .72= 69.72
2. Kayla spends 1.23 hours for English reading, 1.40 hours for Math and 0.39 hours for Science. How many hours does she spend studying? Answer:3.02	1.23 +1.40 + .39 .23 +.40 +.39 =1.02 1.0 +1.0=2.0 +1.02=3.02
3. Kevin measures a triangular plate whose sides are 12.4 inches, 9.45 inches and 10.35 inches respectively. What is the perimeter of a triangular plate? Answer:  32.20	12.4 +9.45 + 10.35 .40 +.45 +.35 = 1.2 12.0+9.0+10.0=32.20
4.Catherine bought a tomato, a chicken and an onion. The respective weights of these items were 2.12 kg, 1.45 kg and 3.19 kg. What is the total weight of the items bought? Answer:6.76	2.12 +1.45 + 3.19= .12+.45+.19=.76 2.0+1.0+3.0 =6.00 6.0 +.76 = 6.76