Decimals
Adding/ Subtracting Decimals
Multiplying and Dividing Fractions
Decimals Again
Other
100
Look at the underlined digits below.
866,304
The difference between the two underlined numbers is that the 6 on the left represents a value of__________.
ten times greater than the 6 on the left
100
Kaitlyn and Addison were searching in the cabinets for cake icing. They found 1.345 pints of chocolate icing and 2.64 pints of vanilla icing.
How many pints of icing did they find in all?
3.985 pints
100
Mrs. Campbell wants to give each student a 2/8 of a pizza. How many pizzas will she need for 32 students?
8 Pizzas
100
Avery finished a baking competition five thousandths of a second faster than her opponent. What is the number written in standard form?
0.005
100
1/10 x 70= 7
True or False and Why?
Yes, because 70x 1/10 is the same as dividing 70 by 10.
200
Deacon finished a swim competition six-thousandths of a second faster than his opponent. What is this number written in standard form?
0.006
200
Whit solved the problem below in his book.
0.6 - 0.14
0.14
- 0.6
0.8
Did Whit solve the problem correctly? Why or why not?
No. He didn't line up his decimals.
200
In Elijah's Lego box, 1/3 of the Legos are blue and red. 2/4 of those Legos are red. What fraction of the Legos are red?
3/12 are red legos
200
What number is represented by the expanded form below?
2 x 100 + 8 x 10 + 7 x 1 + 3 x (1/10)+ 4 x (1/100) =
287.34
200
Look at the multiplication problem below.
1/6 x 12
Which of the following expression is equivalent to the problem?
12-:(6x2)
(6x12)-:2
2-:(6x12)
(1x12)-:6
(1x12)-:6
300
Harley wants to compare the two numbers below.
2.518 and 2.534
Since the ones place in both the numbers is the same, she decided to compare the other digits from those farthest to the right. She knows that 8 is greater than 4, so she decides that 2.518>2.534. Is she correct? and Why?
No. She should have started comparing starting on the left not right. So, 2.534>2.518
300
Look at the two students adding 0.3+1.76
Who solved the problem correctly? Why?
Gracie because she lined up the decimals correctly.
300
Mrs. Holt wants to divide her 21 students into 3 equal groups. Which two expressions could be used to find out how many students will be in each group?
21/7 and 21-:7
21/7 and 7-:21
7/21 and 7-:21
21/7 and 21-:7
300
Solve.
6.45
x 2.5
16.125
300
Mrs. Holt loves brownies. She cuts the brownies into 1/3 inch thick slices. How many slices can she get from a 9 inch pan?
27 slices, because 9 divided by 1/3 is the same as 9x3
400
Look at the pattern.
7 x 100 = 700
7 x 1,000 = 7,000
7 x 10,000 = 70,000
7 x 100,000 = 700,000
Explain the rule of this pattern.
When multiplying by a power of 10, the numbers of zeroes in the product will reflect the power of 10 being multiplied.
400
5.34 + 4.23=
9.57
400
The cafeteria workers made banana bread for the teachers. Each teacher ate 1 1/4 slice of bread each morning for 5 days. How many slices did each teacher eat throughout the week?
6 1/4
400
What pair of equations is represented in the model below?
a. 0.4x0.3=0.12
b. 0.3+0.4=0.12
c. 0.12x0.4=0.3
0.4 X 0.3 = 0.12
400
How many milliliters are equal to 5.43 liters?
(Hint: 1 liter= 1,000 milliliters)
a. 5.34 milliliters
b. 53.4 milliliters
c. 534 milliliters
d. 5,340 milliliters
How many liters are equal to 987 milliliters?
(Hint: 1 liter= 1,000 milliliters)
a. 9.87 liters
b. 987 liters
c. 0.987 liters
d. 9.87 liters
5,340 milliliters
0.987 liters
500
What decimal is represented below?
1.08
500
Whit runs around the bases from first to home plate twice. He records the number of seconds to the nearest hundredth that it takes him to run them each time. What is the difference in the two numbers?
1st time 3.56
2nd time 2.08
1.48 seconds
500
Which situation could represent the expression below?
1/6-:3=
A. LuLu has 1/6 pound of strawberries for a recipe. She needs 3 more pounds. How many total pounds does LuLu need?
B. Isaiah has 3 quarts of paint. He uses 1/6 of of the paint. How much paint does he have left?
C. Cadee has 1/6 of a meter of string. She needs 3 pieces of string. How long will each piece be if Cadee cuts the string?
D. Cameron has to run 3 miles for practice. He ran 1/6 of the distance. How much farther does Cameron have to run?
C. Cadee has 1/6 of a meter of string. She needs 3 pieces of string. How long will each piece be if Cadee cuts the string?
500
Use the number line to find the quotient.
0.9 -: 0.3=
3 because 0.9 can be divided into 0.3 three times.
500
Mrs. Owens bought 39 inches of ribbon. How many feet did she buy?
3 feet 3 inches