Math – LEAP Review – GLE’s

Presented byVicki Martinez

Number and Number Relations Read and write place value in word,

standard, and expanded form through 1,000,000.

Standard form = 4,078,341

Word Form = Four million, seventy-eight thousand, three hundred forty-one

Expanded Form = 4,000,000 + 0 +70,000 + 8,000 + 300 + 40 + 1

2. Read, write, compare, and order whole numbers using place value concepts, through 1,000,000

Practice reading large numbers. 33,905,085

Compare numbers. 348,893 > 348,839 (> means greater than) (< means less than) 90,045 < 99,045

Order the numbers

Order the numbers from least to greatest.

345 874 435 884

Answer: 345 435 874 884

Order the Numbers

Order the numbers from greatest to least:

9,887 8,879 8,798 9,978

Answer: 9,978 9,887 8,879 8,798

3. Illustrate when a number is divisible by 2, 3, 5, or 10.

If the last digit is even, the number is divisible by 2.

Example:

896 - ends in “6”. 6 is an even number. So 896 is divisible by 2.

29,765,433 - ends in “3”. 3 is an odd number. So this number is NOT divisible by 2.

Divisible by 3

If the sum of the digits is divisible by 3, the number is also .

Example: 345 (3 + 4 + 5 =12 and 12 ÷ 3 =4) That means that 345 is divisible by 3. 345 (3 + 4 + 6 =13 and 13 is not

divisible by 3). SO 345 is not divisible by 3.

Divisible by 4

If the last two digits from a number are divisible by 4, the number is also.

Example: 4,528 ( 28 ÷ 4 =7) So, since we

can divide 28 by 4, the entire number is divisible by 4.

Divisible by 5

If the last digit is a 5 or a 0, the number is divisible by 5.

Example: 155 This number ends in 5, so it is

divisible by 5. 150 This number ends in 0, so it is

divisible by 5 153 This number is not divisible by 5.

Divisible by 10

If the number ends in 0 , the number is divisible by 10.

Example: 340 ends in 0. It is divisible by

10.

343 does not end in 0. It is not divisible by 10.

4. Know all basic facts for multiplication and division through

12 x 12 and 144 ÷ 12.

http://www.multiplication.com/cmptrgames/quickpractice.htm

                                                                                              

Prime Numbers

A prime number has exactly 2 factors, 1 and itself.

Example: The factors of 5 are: 1 x 5 So 5 is a prime number. The factors of 6 are 1 x 6; and 2 x 3. 6 is NOT a prime number.

Composite Number A composite number has more

than 2 factors. Example: The factors of 6 are 1 x 6; and 2 x 3. 6 is composite number because it has

more than 2 factors. The factors of 5 are: 1 x 5 So 5 is a NOT a composite number

because it only has 2 factors.

5. Read and write decimals through hundredths and connect them to

corresponding fractions.

Everything to the left of the decimal is a whole number. Everything to the right of the decimal is a fraction that can be written as a decimal.

You only have to remember tenths and hundredths.

Learn This!

A decimal is another way to write a fraction. In $4.25 , $0.25 is  part of a dollar.

It is 25/100 of a dollar. O.25 = 25/100 = 1/4

Learn This!

A decimal is another way to write a fraction. In $4.50 , $0.50 is  part of a dollar.

It is 50/100 of a dollar. O.50 = 50/100 = ½ = 2/4

Learn This!

A decimal is another way to write a fraction. In $4.75 , $0.75 is  part of a dollar.

It is 75/100 of a dollar. O.75 = 75/100 = 3/4

In a decimal, the farther right the number the smaller it's value.

234.1 = _2_hundreds + _3_tens + _4_ ones +_1 tenths

Always remember all decimals can be written as fractions.

O.7 = seven tenths = 7/10

0.5 = five tenths = 5/10 = ½

0.70 = seventy hundredths = 70/100

0.50 = fifty hundredths = 50/100

Fractions and Decimals 1.4 = one and four tenths

1.4 = 1 4 10

39.6 = thirty nine and six tenths

39.6 = 39 6 10

Fractions & Decimals: Hundredths

1.34 = one and thirty four hundredths

1.34 = 1 34 100

In a decimal, the farther right the number the smaller it's value.

234.1 = __hundreds + __tens + __ ones +_ tenths

234.1 = _2_hundreds + _3_tens + _4_ ones +_1 tenths