my math world

Friday, 14 December 2012

Divide 4-digits by 1-digit with remainder


Math Worksheet : Division

1 a.   
 8  5  2  0 







1 b.   
 1  6  5  1 







2 a.   
 1  7  0  5 







2 b.   
 9  2  8  7 







3 a.   
 7  6  8  7 







3 b.   
 1  3  7  9 







Divide 4-digits by 1-digits without remainder

Math Worksheet : Division

1 a.   
 4  1  1  4 







1 b.   
 7  9  5  0 







2 a.   
 4  1  9  0 







2 b.   
 2  8  2  6 







3 a.   
 5  1  8  4 







3 b.   
 2  0  2  8 








Division (equal sharing)

Dividing by 10, 100, and 1000

Thursday, 13 December 2012

Simple real life problem about division


To solve word problems involving division

1.    There are 87 books in one box and 34 in the smaller box. Each shelf takes 25 books. How many shelves does there need to be?

2.   A lorry can carry 35 pallets. The haulage company has 162 pallets to transport. How many lorries need to be used?

3.   A school trip is taking 68 children. Each coach has 25 seats. How many coaches are needed?

4.   On my birthday I bring in 32 cakes to share with my friends. I have 6 friends. How many cakes do they each get?

5.   At half time in a football game the coach has prepared 42 pieces of orange. There are 12 players. How many pieces each do they receive?

6.   A manager has 173 pens to display in 12 boxes. How many pens will he use?

7.   A plane can carry 245 passengers. There are 550 people waiting after a delay due to snow. How many planes will be needed? 

8.    204 sticks of licorice are in the store cupboard at the sweet shop. They are put into bags with 6 sticks in each. How many bags are needed? 

Pony Division


Demolition Division


Divide a 4-Digit Number by a 2-Digit Number



To divide a four-digit number by a two-digit number (for example 3654 ÷ 47), follow these steps:
  • Place the divisor (47) before the division bracket and place the dividend (3654) under it.
       
47)3654

  • Examine the first two digits of the dividend (36). The number 36 is less than 47 so it can't be divided by 47 to produce a whole number. Next take the first three digits of the dividend (365) and determine how many 47's it contains. The number 365 contains seven 47's (7*47=329) but not eight (8*47=376). Place the 7 above the division bracket and directly above the 5.

     7 
47)3654

  • Multiply the 7 by 47 and place the result (329) below the 365 of the dividend.

     7 
47)3654
   329

  • Draw a line under the 329 and subtract it from 365 (365-329 = 36). Bring down the 4 from 3654 and place it to the right of the 6 in 36.

     7 
47)3654
   329
    364

  • Divide 364 by 47 and place that answer above the division bracket to the right of the 7.

     77
47)3654
   329
    364

  • Multiply the 7 of the quotient by the divisor (47) to get 329 and place this below the 364. Draw a line under the 329 and subtract 329 from 364 to get an answer of 35. The number 35 is smaller than 47 so it is called the "remainder" and indicates that there were 35 left over.

     77 R35
47)3654
   329
    364
    329
     35

Wednesday, 12 December 2012

Long division with remainders


Divide
1:
      
7 )140
    
    
     
     
      
      
2:
      
7 )301
    
    
     
     
      
      
3:
      
9 )149
    
    
     
     
      
      
4:
      
7 )111
    
    
     
     
      
      
5:
     
4 )90
    
    
     
     
6:
     
7 )97
    
    
     
     

Long division without remainders


Divide
1:
      
7 )133
    
    
     
     
      
      
2:
      
8 )264
    
    
     
     
      
      
3:
      
9 )324
    
    
     
     
      
      
4:
      
9 )144
    
    
     
     
      
      
5:
      
5 )180
    
    
     
     
      
      
6:
      
3 )105
    
    
     
     
      
      
7:
     
4 )88
    
    
     
     
8:
     
2 )68
    
    
     

Long division step by step

video