Name that Sign!
What operation uses the sign below?
a + b
Addition
What operation would you use to solve the following word problem?
Mrs.Turner has three cats and one dog, in total how many pets does she have?
Addition
What is the inverse?
6 + 7 = 13
13 - 7 = 6
What is the inverse?
2 x 3 = 6
6/3 = 2
What operation uses the sign below?
a * b
multiplication
What operation uses the sign below?
a - b
Subtraction
What operation would you use to solve the following word problem?
Sarah weighed her bag of Halloween candy which was 3.8 lbs, her brother John's weighed 4.2 lbs. What is the difference between John and Sarah's amount of candy?
Subtraction - Difference gives it away
What is the inverse?
13 - 3 = 10
10 + 3 = 13
What is the inverse?
45/9 = 5
5 x 9 = 45
What word tells you to use subtraction in the word problem?
Sarah made 15 tye die t-shirts, her friend Laura made 25 tye die t-shirts. What is the difference between the number of t-shirts Laura and Sarah made?
Difference - means subtraction
What operation uses the sign below?
a x b
Multiplication
What operation would you use to solve the following word problem?
James has 15 peaches, he gives away five to his friends. How many does James have now?
Subtraction - "gives away"
What is the inverse?
23 - 5 = 18
18 + 5 = 23
What is the inverse?
96/ 8 = 12
12 x 8 = 96
What word tells you to use division in the word problem below?
Mrs. Turner has 100 students, she divides them into groups of 5. How many groups will there be?
Divides - division
What operation uses the sign below?
a/b
Division
What operation would you use to solve the following word problem?
Mrs. Turner has a container of 60 pencils and she wants to divide it equally among her 12 students. How many pencils do each student get?
Division - Divide
What is the inverse?
102 - 52 = 50
50 + 52 = 102
What is the inverse?
42/7 = 6
6 x 7 = 42
What is the inverse?
216/12 = 18
18(12) = 216
What operation uses the sign below?
a(b)
Multiplication
What operation would you use to solve the following word problem?
Bozo has four bones, he has buried three times that amount in the backyard. How many bones has Bozo buried?
Multiplication - "three times"
What is the inverse?
943 + 7 = 950
950 - 7 = 943
What is the inverse?
8 (100) = 800
800/100 = 8
What is the inverse?
45(12) = 540
540/12 = 45