Whole Numbers Unit Test
Test Date: Wednesday, October 22, 2014
Topics to Review:
*1 is Unique*
Prime vs. Composite (pgs. 58-59 and notes)
Prime numbers have ONLY 2 factors (1 and itself) for example 2,3,5,7, etc
Composite numbers have more than 2 factors
Comparing and Ordering Integers (pgs. 20-21, 68-72, notes)
Greater than/Less than (<, >)
Ordering from least to greatest to least or least to greatest
Place Value (pg. 3, notes)
Period - Value of a number – Place Value of a Digit
Rounding (pgs. 14-19 and notes)
0-4 the number stays the same
5-9 the number increases by 1
Divisibility Rules (pgs. 64-66 and notes)
Know the divisibility rules for the following numbers 2, 3, 4, 5, 6, 8, 9, 10
Multiplying Multiples of Ten (pgs. 30-31 and notes)
Example 400 x 7,000 = 28,000,000
Multiplying (pgs. 33-36 and notes)
2 digit numbers by 2 digit numbers (15 x 22)
3 digit numbers by 2 digit numbers (246 x 73)
Parts of a Division Equation (check notes for definitions)
Dividend, Divisor, Quotient
3 Ways to Write a Division Equation (wkbk pgs. 37-39, notes)
Sentence, Symbol, Fraction
Special Properties of Division (wkbk pgs. 40-42, notes)
Anything divided by zero is undefined or meaningless (15 ÷ 0 = undefined)
Zero divided by any other number is zero (0 ÷ 15 = 0)
Anything divided by one is that number (13 ÷ 1 = 13)
Anything divided by itself is one (13 ÷ 13 = 1)
Dividing by multiples of 10 (wkbk pg 43, notes)
Underline the first digit(s) 20,000 ÷ 40 =
Divide the underlined numbers 20 ÷ 4 = 5
Dance the zeros 20,000 ÷ 40 =
Place the “leftover” zeros in the quotient 20,000 ÷ 40 = 500
Estimating Quotients
When estimating quotients round the divisor to the nearest whole number
Then made your dividend a number that is a MULTIPLE of the divisor
Divide using dancing zeros
Example: 23,974 ÷ 47 =
25,000 ÷ 50 (because 25 is a multiple of 5)
Then 25 ÷ 5 = 5 , dance your zeros and you have an estimated quotient of 500
Dividing with 1 and 2 digit divisors (wkbk pgs. 44-47, notes)
Divide – Multiply – Subtract – Check – Bring Down – Remainder
*All remainders must be in the form of a fraction in SIMPLEST form*
Integers (wkbk pgs. 67,-76, notes)
A number and its opposite on the number line
Comparing and Ordering
Absolute Value (wkbk pgs. 74-75, notes)
The absolute value of a number is its distance from zero
Coordinate Grid (wkbk pgs. 77-81, notes)
Four Quadrants
Plot and locate points
Addition/Subtraction (wkbk pgs. 22-29)
LOOK AT QUIZ 1, QUIZ 2 and Quiz 3 FOR REFERENCE TOO
***Math needs to be practiced! Look over notes that have been placed in the reference section
of your notebook along with completed homework assignments. There are extra workbook pages
that have not been completed so that you can use them as practice.