Adding, Subtracting, Multiplying, Dividing, Fractions Madam Zakiah Hassan 23 February 2012

Adding To add whole numbers, you unite two or more numbers called addends to make one number called sum, total, or amount. Example

Subtracting Is opposite of addition It takes one number away from another number. The top (largest) is minuend. The bottom (small) is subtrahend. Example 4327 (minuend) (subtrahend) 2987

Multiplying Sometimes it is shortcut to addition The top number ( no we want to multiply) is multiplicand. The bottom number ( number doing the multiplying) is the multiplier. The final number (answer) is the product. The number between the multiplier and the product are partial numbers. Example 418 X 52

Division Reverse of multiplication & time saving shortcut related to subtraction. Division ask how many times one number (divisor) is contained in another number (dividend). The answer (result) is the quotient Example

Fractions Explain the parts of whole numbers called fractions Express Numerator, top of fraction Denominated - bottom of the fraction

Fractions Types a.Proper fractions / simply fractions b.Improper fractions c.Mixed fractions

Fractions Adding Subtracting Multiplying Dividing Fractions maybe in figure or in term of problem solving.

Rounding decimals Decimal point is the center of the decimal numbering system. Why  if you moves a digit to the left of the decimal point by places (ones, tens, and so on) you increase its value 10 times for each place. Why  if you move a digit to the right of the decimal point by place ( tenth, hundredths, and so on), you decrease its value 10 times for each place.

Rounding decimals Example – Round to nearest dollar : $  $166 – Round to nearest cent : 1,  1, – Round to nearest hundredth :  – Round to nearest thousandth : 1, > 1,