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PRIME NUMBERS: Learn how to identify a Prime Number

PRIME NUMBERS EXPLAINED Prime Numbers are those numbers that can only be divided by themselves and 1. Example: Tick only the prime numbers 3,4,5,6,11,29,71,50,99 Let's start with 3: Think of a number that can divide 3 without a remainder. The only 2 numbers are: 3 and 1. Therefore, 3 is a prime number. Next is 4: 1,2 and 4 (itself) are the numbers that can divide 4 without a remainder. Therefore, 4 is not a prime number. 3✓,5✓,11✓,29✓ and 71✓ are Prime Numbers. Try this: Use {✓} for Prime Numbers and {x} for numbers that are not Prime Numbers. 1) 49,33,43,39 2) 13,69,19,91 3) 39,83,31,61 4) 27,37,47,57

LCM: Use these methods to find the L.C.M of any number

L.C.M METHODS EXPLAINED In mathematics, LCM stands for Lowest Common Multiple or Least Common Multiple. Methods of Finding L.C.M There are two major methods of finding the L.C.M (Lowest Common Multiple) of a number or numbers. These methods are: 1. The Multiples method 2. The Division method The Multiples Method Another name for the multiples method is the skip counting method. Example: Find the L.C.M of 6 and 9 Using multiples method, it will be solved as: Multiples of 6=6,12, 18 ,24,30...(keep adding 6 to the answer gotten).This is how you get the multiples of a number. Multiples of 9=9, 18 ,27,36,45...(keep adding 9 to the answer gotten). Therefore, the L.C.M of 6 and 9 =18. ...

Addition of Decimal Numbers: Learn how to add decimal numbers without using a calculator

DECIMAL NUMBERS ADDITION EXPLAINED A decimal number is a number that is made up of two parts separated by a dot/point. This point is known as the decimal point. How To Add Decimal Numbers Without A Calculator The following tips should be applied to add decimal numbers correctly: Tip 1: Convert whole numbers to decimal Tip 2: The numbers should be arranged based on their place value. Example: 14.556 + 98 + 9.2 is ___ Based on our tips above it will be solved as: 98.000 14.556 9.200 _____ 121.756 Working: 0+6+0=6 0+5+0=5 0+5+2=7 8+4+9=21 {here, write 1 and take 2 to the column of 9} 9+1=10 { add the 2 removed from column 8 to 10}. It becomes 10+2=12 Our Final Answer=121.756. Now Try These: 1) 2005.41 + 1.728 = 2) 3.135 + 1.06 = 3) 288.675 + 18 + 1.8 = 4) 1.65 + 0.037 + 20 = ...

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