Place Value/Rounding
What place is the 7 in the number 6,780.
Bonus: What is the value of the 7 in this number AND how do you know?
The hundreds place.
Bonus: 700 because it's in the hundreds place.
What unknown number makes this equation true?
74+238=___
312
What multiplication expression can help you find the answer to 54 divided by 6?
What is the answer to 54 divided by 6?
6x___=54
___x6=54
9
What should be the numerator to make this equation true?
1= ___/8
8
What is the difference between area and perimeter?
Area is the space that an object takes up or the space inside a shape. (Length x Width)
Perimeter is the distance around the outside of a shape.
Round 567 to the nearest ten.
570
628-96 = 628-100+____
4
What is 81 divided by 9?
9
Draw a number line and show where 1/4 and 4/4 would be.
Let's have a volunteer draw the answer on the board!
If one side of an octagon measures 7 cm, what is the perimeter of the entire shape?
Hint: An octagon has 8 sides!
56 cm
What is the smallest number that, when rounded to the nearest ten, could be 80.
75
75-79 rounds up to 80, 81-84 rounds down to 80. Therefore, 75 is the smallest number that rounds to 80.
Jeff has 7 dimes. Trevor has 20 nickels. How much more money does Trevor have than Jeff?
a. 13 cents
b. 27 cents
c. 30 cents
d. 130 cents
c. 30 cents
7 dimes=70 cents
20 nickels=100 cents
100-70=30
How does knowing 8x10 help you know 8x20?
Let's have volunteers share their answers!
Which fractions are smaller than 1/4? How do you know?
a. 1/2
b. 1/3
c. 1/6
d. 1/8
1/6 and 1/8
A rectangular playground is 4 meters wide. It is 3 times as long as it is wide. What is the area? What is the perimeter?
Area: 48 square meters
Perimeter: 32 meters
What is eight thousand and sixty eight in standard form AND expanded form?
Standard Form: 8,068
Expanded Form: 8000+60+8
Bryant, Brenda, and Jack went bowling together. Bryant's score was 55. Jack's score was double Bryant's. Brenda had 13 fewer points that Jack. What was Brenda's score?
97 points.
55+55=110
110-13=97
Decide whether each expression is equal to 6 x (8+10). Write Yes or No for each expression.
a. (6x8) x (6x10)
b. (6x8) + (6x10)
c. (6x10) + 8
d. 6 x (10+8)
No
Yes
No
Yes
Draw a number line and show where 8/3 would be located.
Let's have a volunteer draw the correct response on the board!
Rectangle E has a length of 5 inches and a width of 2 inches. Choose all the rectangles that have the same perimeter as Rectangle E.
a. Rectangle F - length 6 inches, width 7 inches
b. Rectangle G- length 4 inches, width 3 inches
c. Rectangle H- length 2 inches, width 12 inches
d. Rectangle J- length 1 inch, width 6 inches
Rectangles G and Rectangle J
My digits are three different even numbers. My ones digit is the number of sides on two triangles. The sum of my hundreds digit and tens digits is equal to my ones digit. I'm not 246 or 606. What am I?
426
9000-387.
Use standard algorithm to subtract with regrouping. Please show your work!
8,613
What is 8x70? What strategy did you use?
560
What are two fractions that are equivalent to 2/3? How do you know?
4/6, 3/9, 8/12, etc.
Jason built a rectangular tool shed that is 8 meters wide and has an area of 96 square meters.
What is the width of the tool shed?
What is the perimeter of the tool shed?
Width: 12 meters
Perimeter: 40 meters