Decimal Operations
0.61 + 2.342
2.952
Ryujin buys Php 9.75 worth of gummy bears. If he bought 3 gram, how much do they cost per gram?
Php 3.25 per gram
1/3 + 2/3
1
A recipe requires 5/6 cup of sugar. If Mrs. Masha is going to make half of the recipe, how much sugar does she need?
5/12 cups of sugar
For which decimal operation(s) (addition, subtraction, multiplication, division) do you need to line up the decimal points?
Adding and subtracting
43.46 - 31.52
11.94
On Saturday morning, Raijin went to the farmer's market. He bought 3 eggplants for Php 5.79 each. He paid with Php 20. What change did he get back?
Php 2.63
5/6 - 1/6
2/3
Kevin has an apple pie. He ate 1/3 of the pie. Cha ate 1/5 of the pie. How much of the pie is left?
7/15 of the pie
For which mixed number operation(s) (addition, subtraction, multiplication, division) do you need to get common denominators?
Adding and subtracting
1.43 x 6.34
9.0662
Mae is making a bracelet at a camp using beads that are 1.64 cm long. What will be the length of her bracelet if she uses 19 beads?
31.16 cm
4/7 x 5/9
20/63
A piece of thread is 11/12 inches long. Jochelle needs to cut the thread into 1/6 inch segments. How many full segments can she cut?
5 segments
For which decimal operation(s) (addition, subtraction, multiplication, division) do you need to count the number of digits after the decimal points?
Multiplication
84.021 divide 2.1
40.01
In a relay race the team had a total time of 5.67 minutes. Here are 3 of the runners times: 1.2, 2.09, 1.78. What is the fourth runner's time?
0.6 minutes
14/15 + 2/3
8/5 or 1 3/5
A 15-grams bag of sugar is being split up into containers that hold 7/8 of a gram. How many containers of sugar will the 15-gram bag fill?
17 containers
For which mixed number operation(s) (addition, subtraction, multiplication, division) do you need to convert mixed numbers into improper fractions as a first step?
Multiplication and division
807.3 -: 9
89.7
A pack of peanut is priced at Php 15.18 for 6.6 grams. What is the price of one gram of peanut?
Php 2.30 per gram
11/12 divide 1/9
8 1/4
Mariel uses 1/3 cup of milk each time she makes a batch of pancakes. How many batches can she make if she only has 11/12 cup of milk left?
2 batches of pancakes
List the FOUR steps for dividing by mixed numbers.
1. Keep Change Flip
2. Multiply (or cross simplify)
3. Simplify (or multiply)