Operations and properties of rational numbers Flashcards
Add to
a number is being given, and more is being added to the number to find a sum
Identify the problem situation and expression given this scenario: Jon had 2 apples. Kevin gave him 3 more apples. How many apples does Jon have now?
2+3=?, Add to, Result Unknown, Word Problem
Identify the problem situation and expression given this scenario:
*+=
…+..=?
3+2=?, Add to, Result Unknown, Picture Problem
Identify the problem situation and expression given this scenario: Manda has one cat. She found a couple more cats on the playground. Now she has three cats. How many cats did she find on the playground?
1+?=3, Add to, Change Unknown, Word Problem
Identify the problem situation and expression given this scenario: +?=**
..+?=….
2+?=4, Add to, Change Unknown, Picture Problem
Identify the problem situation and expression given this scenario: The teacher has some paperclips on her desk. A student comes up and places two more paperclips on the teacher’s desk. Now there are five paperclips total. How many paperclips were on the teacher’s desk to start?
?+2=5, Add to, Start Unknown, Word Problem
Identify the problem situation and expression given this scenario:
?+###=#####
?+3=5, Add to, Start Unknown, Picture Problem
Take From
a number is given, and some is being taken away from this number to find the difference.
Identify the problem situation and expression given this scenario: Tory had five flowers. She gave away three flowers. How many flowers does Tory have left?
5-3=?, Take From, Result Unknown, Word Problem
Identify the problem situation and expression given this scenario: &&&-&&=?
3-2=?, Take From, Result Unknown, Picture Problem
Identify the problem situation and expression given this scenario: Seven bees are flying near a flower. A bunch of them fly away leaving two near the flower. How many bees flew away?
7-?=2, Take From, Change Unknown, Word Problem
Identify the problem situation and expression given this scenario: %%%-?=%
3-?=1, Take From, Change Unknown, Picture Problem
Identify the problem situation and expression given this scenario: Sally started out with a bunch of star stickers. She gave four away leaving her with one for herself. How many star stickers did she start with?
?-4=1, Take From, Start Unknown, Word Problem
Identify the problem situation and expression given this scenario: ?-///=//
?-3=2, Take From, Start Unknown, Picture Problem
Put together / take apart
Often referred to as part, part, whole. Part of the number is given, then another part is given to make a total amount.
Identify the problem situation and expression given this scenario: Sally knitted three gloves on Monday and knitted three more on Tuesday. How many total gloves did Sally knit?
3+3=?, Put together / take apart, Total Unknown, Word Problem
Identify the problem situation and expression given this scenario: Darrell has collected five rare bird feathers. Two feathers are blue and the rest are white. How many feathers are white?
5-2=?, 2+?=5, Put together / take apart, Addend Unknown, Word Problem
Identify the problem situation and expression given this scenario: Brock has six forks to place into two buckets, bucket A and bucket B. How many forks can go in Bucket A and how many forks can go in bucket B?
The addends will vary. 2+4=6, 5+1=6, 3+3=6, Put together / take apart, Both addends unknown, Word Problem
Identify the problem situation and expression given this scenario: ?+?=@@@@
The addends will vary. 1+3=4, 2+2=4, Put together / take apart, Both addends unknown, Picture Problem
Compare
Two values are given for a total, with the size pf one being compared to the size of the other
Identify the problem situation and expression given in this scenario: There are five butterflies on a purple flowering bush. There are three butterflies on a yellow flowering bush. How many more butterflies are on the purple bush than on the yellow bush?
3+?=5, Compare, Difference Unknown, How Many More? Word Problem
Identify the problem situation and expression given in this scenario: Kevon has three oranges. Natasha has six oranges. How many fewer oranges does Kevin have than Natasha?
6-3=?, Compare, Difference Unknown, How many fewer? Word Problem
Identify the problem situation and expression given in this scenario: Tory has more tickets than Paula. Paula has three tickets. How many tickets does Tory have?
3+4=?, Compare, Bigger Unknown, “More” Version Word Problem
Identify the problem situation and expression given in this scenario: Elvin has one fewer notebook than Josiah. Elvin has four notebooks. How many notebooks does Josiah have?
?-4=1, Compare, Bigger Unknown, “Fewer” Version Word Problem
Identify the problem situation and expression given in this scenario: Joseph has two more dollars than Stephen. Joseph has five dollars. How many dollars does Stephen have?
5-2=?, Compare, Smaller Unknown, “More” Version Word Problem
Identify the problem situation and expression given in this scenario: Petra has three fewer fish than Deana. Deana has eight fish. How many fish does Petra have?
8-3=?, Compare Smaller Unknown, “Fewer” Version Word Problem
Identify the problem situation and expression given in this scenario: There are 3 bags with 6 plums in each bag. How many plums are there in all?
3x6=?, Equal Groups, Unknown Product, Multiplication Word Problem
Identify the problem situation and expression given in this scenario: You need 4 lengths of string, each 5 inches long. How much string will you need altogether?
4x5=?, Equal Groups, Unknown Product, Multiplication Measurement Word Problem
Identify the problem situation and expression given in this scenario: if 18 plums are shared equally into 3 bags, then how many plums will be in each bag?
3x?=18 and 18÷3=?, Equal Groups, Group Size Unknown, How many in each group? Division Word Problem
Identify the problem situation and expression given in this scenario: You have 12 inches of string, which you will cut into 6 equal pieces. How long will each piece of string be?
6x?=12 and 12÷6=?, Equal Groups, How many in each group? Division Measurement Word Problem
Identify the problem situation and expression given in this scenario: If 18 plums are to be packed 6 to a bag, then how many bags are needed?
?x6=18 and 18÷6=?, Equal Groups, Number of Groups Unknown, How many groups? Division Word Problem
Identify the problem situation and expression given in this scenario: There are 3 rows of apples with 6 apples in each row. How many apples are there?
3x6=?, Arrays, Unknown Product, Word Problem
Identify the problem situation and expression given in this scenario: What is the area of a 4 cm by 5 cm rectangle?
4x5=?, Area, Unknown Product, Word Problem
Identify the problem situation and expression given in this scenario: If 18 apples are arranged into 3 equal rows, how many apples will be in each row?
3x?=18 and 18÷?=3, Arrays, Group Size Unknown, Word Problem
Identify the problem situation and expression given in this scenario: A rectangle has an area of 12 square cm. If one side is 6 cm long, how long is a side next to it?
6x?=12 and 12÷?=6, Area, Groups Size Unknown, Word Problem
Identify the problem situation and expression given in this scenario: If 18 apples are arranged into equal rows of 6 apples, how many rows will there be?
?x6=18 and 18÷6=?, Array, Number of Groups Unknown, Word Problem
Identify the problem situation and expression given in this scenario: A rectangle has an area of 14 square cm. If one side is 7 cm long is a side next to it?
?x7=14 and 14÷7=?, Area, Number of Groups Unknown, Word problem
Identify the problem situation and expression given in this scenario: A blue hat costs $6. A red hat costs 3 times as much as a the blue hat. How much does the red hat cost?
6x3=?, Compare, Unknown Product, Word Problem
Identify the problem situation and expression given in this scenario: A rubber band is stretched to be 18 cm long, and that is 3 times as long as it was at first. How long was the rubber band at first?
3x?=18 and 18÷3=?, Compare, Groups Size Unknown, Word Problem
Identify the problem situation and expression given in this scenario: The oak tree is 15 feet tall. The palm tree us 3 feet tall. What fraction of the height of the oak tree is the height of the palm tree?
3x?=15 and 3÷15=?, Compare, Number of groups unknown, Unit Fraction Word Problem
Identify the problem situation and expression given in this scenario: The palm tree is 3 feet tall. This is 1/5 as tall as the oak tree. How tall is the oak tree?
?x 1/5=3 and 3÷1/5=?, Compare, Group Size Unknown, Unit Fraction Word Problem
Identify the problem situation and expression given in this scenario: The oak tree is 15 feet tall. The palm tree is 1/5 as tall as the oak tree. How tall is the palm tree?
15x1/5=?, Compare, Unknown Product, Unit Fraction Word Problem
