1 Divide large numbers 6 3 9 Example 639 ÷ 3 Set out the working like this: 3 2 Then the tens Start with the hundreds 639 ÷ 3 = 213 3 ÷ 3 = 1 6 ÷ 3 = 2.

Slides:

Advertisements

Similar presentations

Rules of Divisibility. Divisible by 2? If the last digit is even then the number is divisible by 2. Even digits are 0, 2, 4, 6 and 8 (yes zero is even!)

Advertisements

Multiplication Practice Do you know how to multiply with double digits?

Decimals and Fractions

long short Division space saver

Division Algorithms By: Jessica Nastasi.

Today our topic of discussion will be: Division by 2 digit divisors

Multiplication and Division problems use the same numbers. These groups of numbers are called number or fact families x ÷ They all fit together.

Long Multiplication What is long multiplication?

Seek The Multiplication Treasure Copy this problem. Multiply the factors in the top row by the digit in the ones place in the second factor.

Fractions and Decimals

Addition Using Pencil & Paper Methods

Multiplying Multiple Digit Numbers

Maths Notes Number 5. Decimals

Place value and ordering

Short Division.

Paper Power 1 (Multiplication) I am learning to work out multiplication problems using written working forms. 24 x

Multiplying and Dividing Decimals by 10, 100, and 1,000

Chapter 3 Whole Numbers Section 3.6 Algorithms for Whole-Number Multiplication and Division.

Operations on Scientific Notation Addition and Subtraction 1. If they have the same exponent - add/subtract the number in front - keep the same exponent.

Rationals- Synthetic Division POLYNOMIAL DIVISION, FACTORS AND REMAINDERS Synthetic division is an alternative method to dividing rationals. The great.

STEP 1 Multiply the digits in the ones place. Write the product in the ones place of the answer box. If the product is greater than ten, carry the number.

Long Division. We are going to try to solve 837 ÷ 27.

Back to menu - St. Bartholomew’s C of E Primary School Parents Guide to maths + ÷ x Quit Multiplication AdditionSubtraction Division *Only click when.

Algebraic long division Divide 2x³ + 3x² - x + 1 by x + 2 x + 2 is the divisor The quotient will be here. 2x³ + 3x² - x + 1 is the dividend.

Multiplying tens I am learning to multiply tens, hundreds, thousands, and other tens numbers. 10, 20, , 200, , 2000, 3000.

E.g Division of Decimals Rule: 1. Make the DENOMINATOR a whole number by multiplying by 10, 100 or 1, Multiply the.

Math 5 Using Exponents to Write Numbers

Warm-Up. TEST Our Ch. 9 Test will be on 5/29/14 Complex Number Operations.

Factors, Prime Numbers & Composite Numbers. Definition Product – An answer to a multiplication problem. 7 x 8 = 56 Product.

5 2,389 Long Division x 4 Step 1: Does 5 go into 2? No. So mark it.

÷ ÷ Chris Clements Written Methods Long Division ÷

Dividing Polynomials. First divide 3 into 6 or x into x 2 Now divide 3 into 5 or x into 11x Long Division If the divisor has more than one term, perform.

3x + 2 6x 3 - 5x 2 – 12x – 4 DMSBDMSB 2x 2 6x 3 + 4x 2 -9x 2 – 12x – 3x -9x 2 – 6x – 4 – 2 – 6x– 4 0 Check: (3x + 2)(2x 2 – 3x – 2) = 6x 3 – 9x 2 – 6x.

Division. How many 5’s are in 230?   230 is actually  So, you have 2 (100’s), 3 (10’s), and 0 (1’s)  Let’s practice  What is 456 broken.

$100 $200 $300 $400 $100 $200 $300 $400 $300 $200 $100 Multiply by 1 digit numbers Multiply & estimate results Multiply by 2 digit numbers Multiply.

Entry Task – No calculators. Chapter 5.4 Dividing Polynomials Target: I know how to divide polynomials using long division. I know how to divide using.

An Introduction to Prime Factorization by Mrs. Gress

Everyday Math Algorithms

No Pencil or Paper Needed!.  Make sure you know your multiplication tables up to 10.

Long multiplication – column method

A reminder about place value Have a look at the number hundreds 2 tens 3 units 6 is the hundreds digit. 2 is the tens digit.

MENTAL MATH Front End Mental Math with Addition Strategy: Add the tens place first and then the ones place = = =

Division of Polynomials

Dividing Polynomials.

3x + 2 6x3 - 5x2 – 12x – 4 2x2 – 3x – 2 6x3 + 4x2 -9x2 – 12x -9x2 – 6x

Terminating and Repeating Decimals

Long Division Methods Method 1.

1. Multiplying by 10,100,1000 Shortcut?S Add one 0 Multiply by 10

Multiplication.

Fraction Revision.

Dividing Larger Dividends

Click here for the answer. Click here for the answer.

Click here for the answer. Click here for the answer.

Click here for the answer. Click here for the answer.

Multiplication Pages

Division Page 87 – 119.

Division Properties of Real Numbers

Dividing Polynomials Using Synthetic Division

Use Strategies and Properties to Multiply by 1-Digit Numbers

Dividing Polynomials © 2002 by Shawna Haider.

Dividing a whole number to get decimal

Dividing Polynomials.

Division Dividing 3 and 4 Digits by 2 Digits.

Decimals Year 5 (age 9-10).

Place Value Name: _____________________

Snow Plough Division.

Presentation transcript:

1 Divide large numbers Example 639 ÷ 3 Set out the working like this: 3 2 Then the tens Start with the hundreds 639 ÷ 3 = ÷ 3 = 1 6 ÷ 3 = 2 Then the units 9 ÷ 3 = 3 3

9 Divide large numbers Example 785 ÷ 2 Sometimes there are ‘left overs’! 2 3 Then divide the units First divide the hundreds 785 ÷ 2 = 392 r 1 18 tens ÷ 2 = 9 tens 7 ÷ 2 = 3 and 1 hundred left over The left over hundred gives another 10 tens 1 5 ÷ 2 = 2 and 1 left over 2 The left over at the end is called a ‘remainder’

7 Divide large numbers Example 589 ÷ 8 Here is another example 8 There are no 8s in ÷ 8 = 73 r 5 58 ÷ 8 = 7 and 2 tens left over The 5 hundreds are left over and give 50 more tens 5 29 ÷ 8 = 3 and 5 left over 3 r 5 2

7 Divide large numbers Example ÷ 5 For larger numbers just keep repeating the process 1 35 ÷ 5 = ÷ 5 = ÷ 5 = 1 with 3 left over ÷ 5 = 7 with 1 left over 1 14 ÷ 5 = 2 with 4 left over ÷ 5 = 8 with 3 left over 8 3 7

5 Divide large numbers Example 3526 ÷ 7 Don’t put zeros at the front, but include them in the middle 3526 ÷ 7 = 503 r 5 There are no 7s in Don’t put a zero on top just carry the 3 35 ÷ 7 = Write a zero on top and carry 2 3 r 5 There are no 7s in 2 26 ÷ 7 = 3 r 5

Divide Numbers 1) 428 ÷ 2 2) 564 ÷ 2 3) 835 ÷ 5 4) 714 ÷ 3 5) 618 ÷ 4 6) 325 ÷ 6 7) 9541 ÷ 7 8) 1563 ÷ 8 9) 9126 ÷ 9 10) 2463 ÷ 5 11) ÷ 3 12) ÷ 4

Try these on paper, then left click to check your answers. Divide Numbers 214 1) 428 ÷ r 2 54 r 1 2) 564 ÷ 2 3) 835 ÷ 5 4) 714 ÷ 3 5) 618 ÷ 4 6) 325 ÷ ) 9541 ÷ r r r 1 8) 1563 ÷ 8 9) 9126 ÷ 9 10) 2463 ÷ 5 11) ÷ 3 12) ÷ 4

Long Division To divide by larger numbers, work out the values you need × 16 = 2 Example 672 ÷ ÷ 16 = To work out how many 16s there are in 67 64

Long Division 7 Example 2166 ÷ ÷ 38 = is near 40 and 40 × 5 = 200 You may prefer to estimate the answer then check, as shown below: So try 38 × × × 7 = 280 So try 38 × ×

Long Division 8 r 3 Example 4137 ÷ ÷ 53 = 78 r is near 50 and 50 × 8 = 400 Your estimate may not be right every time. So try 53 × × too big So try 53 × × We already know 53 × 8 = 424

Try these on paper, then left click to check your answers. Long Division 46 1) 552 ÷ ) 375 ÷ 15 3) 1197 ÷ 19 4) 2025 ÷ 25 5) 936 ÷ 24 6) 1363 ÷ ) 1856 ÷ r 6 85 r 5 74 r r r 73 8) 2386 ÷ 35 9) 4000 ÷ 47 10) 3858 ÷ 52 11) 8125 ÷ 78 12) ÷ 89