Rounding
What is the rule of rounding?
Any number 5 or greater, round up.
Any number 4 or less, round down.
Describe the three characteristics of area.
1. Area is the space INSIDE the shape.
2. To find area, find the product of LxW
3. You will use multiplication when finding area.
What is an odd number?
An odd number cannot be divided evenly by 2.
What is the difference between standard, expanded, and word form?
2. Expanded form: a number broken up by place value.
3. Word form: a number written using only words.
What is the rule in finding equivalent fractions?
Whatever you do to the top, you must do to the bottom.
Round 453 to the nearest ten.
450
Describe the three characteristics of perimeter.
1. Remember "rim"
2. Mostly addition, sometimes multiplication
3. Covers the outside of the shape
What is an even number?
An even number can be evenly divided by 2.
Standard Form
What are the two ways to find equivalent fractions?
1. Multiply the numerator and the denominator by the same number.
2. Divide the numerator and the denominator by the same number.
Round 2,654 to the nearest hundred.
2,700
What is the area of a rectangle that has a length of 12 square centimeters and a width of 5 square centimeters?
60 square centimeters
Is 12 an even or odd number?
Even
Write 245 in expanded form.
200+40+5=245
Are 1/2 and 3/6 equivalent fractions? How do you know?
Yes. Multiply the numerator and denominator by 3.
Round 7,124 to the nearest thousand
7,000
What is the perimeter of a square when you know that one side is 20 centimeters?
80 centimeters
Is 565 an even or odd number?
Odd
Write 6,559 in word form.
Six thousand five hundred fifty nine.
Are 12/24 and 6/12 equivalent fractions? How do you know?
Yes. Divide numerator and denominator by 2.
Round 15,664 to the nearest ten thousand.
20,000
What is the area of a square that has a length of 10 square meters?
100 square centimeters
Is 2,554 an even or odd number?
Even
Write 9,999,999 in standard, expanded, and word forms.
1. Standard form: 9,999,999
2. Expanded form: 9,000,000+900,000+90,000+9,000+900+90+9
3. Nine million nine hundred ninety nine thousand nine hundred ninety nine
Are 5/16 and 10/8 equivalent fractions? How do you know?
No