Download presentation

Presentation is loading. Please wait.

Published byYadiel Helliwell Modified over 2 years ago

1
Where does the decimal go? This depends on which operation you are performing: »Addition »Subtraction »Multiplication »Division

2
0 ADDITION 52.36 + 3.2 = Line up the decimals at the decimal point 52.36 (Put in any zeroes needed for place holders) + 3.2 Add the columns, then bring the decimal straight down 55 56.

3
0 SUBTRACTION 52.36 - 3.2 = Line up the decimals at the decimal point 52.36 (Put in any zeroes needed for place holders) - 3.2 Subtract the columns, then bring the decimal straight down 49 16.

4
MULTIPLICATION 3.2 x 0.6 = You do NOT need to line up the factors at the decimal point 3.2 Move the decimal that number of spaces X.16 192 Perform the multiplication steps one row at a time Add a zero for a placeholder in the 2nd row 032 Add the rows together 512 Count the number of digits behind the decimal in the two factors.

5
DIVISION with a decimal in the DIVIDEND 142.5 ÷ 3 = Write the problem, putting the dividend “inside the cookie jar” Bring the decimal straight UP 12 21 1 142.53 Perform the division steps as you would even without the decimal 4 22 7 5 5. 15 - - -

6
DIVISION with a decimal in the DIVISOR 142.5 ÷.3 = Write the problem, putting the dividend “inside the cookie jar” NOW Bring the decimal straight UP 12 21 1 142.5.3 Perform the division steps as you would even without the decimal 4 22 7 5 5. 15 - - - You need the number in the divisor to be a whole number. MOVE the decimal to the right the number of spaces needed to make it a whole number.. Now you have to move the decimal in the dividend the same number of spaces to the right.

Similar presentations

Presentation is loading. Please wait....

OK

How do we divide decimals?

How do we divide decimals?

© 2017 SlidePlayer.com Inc.

All rights reserved.

Ads by Google

Download ppt on oxidation and reduction problems Ppt on different types of computer softwares for resume Ppt on teaching english as a second language Simple ppt on body language Ppt on data collection methods in research Ppt on sea level rise toolbox Ppt on density based traffic light control system Ppt on working of lcd tv Ppt on nobel prize winners of india Ppt on interchange of sentences