Download Decimals Grades 2-6

Decimal Math Using Singapore
Addition
1. In a study of hummingbirds, researchers found that one adult male hummingbird
weighed exactly 3.037 grams. An adult female weighed 0.35 grams more. What was the
weight of the adult female? ( Houghton Mifflin Math Practice book p 72 # 24)
2. A car emitted 0.750 grams more of a pollutant than the 0.09 grams allowed. How
many grams of this pollutant did the car emit? Explain how you found your answer.
(Houghton Mifflin Student Text P 285 # 38)
3. Olivia is buying a jacket that costs $84.50. The sales tax that will be added to the cost
of the jacket is $4.65. What is the total cost of the jacket? (Math Expression Homework and
Remembering p. 55 # 14)
Subtraction
4. A newborn kangaroo measures about 0.02 meters in height. An adult kangaroo can
measure up to 2.7 meters in height. How much shorter is the baby kangaroo than the
tallest adult? (Math Expression p 118 # 5)
5. A car gets 38.6 miles per gallon on the highway. It gets 5.75 miles per gallon less
when it is in the city. How many miles per gallon does the car get in the city? (Houghton
Mifflin Student Text Book p 289 # 9)
6. When a monarch butterfly hatches, it is a tiny caterpillar 0.35 cm long. When the
caterpillar is grown, it is about 5.1 cm long. How many centimeters does the monarch
caterpillar grow? (Math Expressions p 120 # 8)
Multiplication
7. Sue lives 0.9 km from the school. Kim lives half as far from the school as Sue. How
many kilometers does Kim live from the school? Express your answer as a decimal.
(Houghton Mifflin Math Practice book p 83 # 19)
8. Hector and his family will be on vacation for 28 days. Hector’s friend Paco will take
care of Hector’s rabbits. The rabbits eat 0.34 kilogram of food each day. How many
kilograms will Hector need to leave with Paco? (Math Expressions Homework and Remembering
p 155 #9)
Division
9. Jan has $138.96 for spending money on her trip. She wants to budget the same
amount of money for each of the 6 day. How much money can she budget for each day?
(Houghton Mifflin Practice Book p 92 #29)
10. Teresa bought 8 roses for $10.32. How much did she pay for each rose? (Math
Expression Homework and Remembering p 163 # 10)