F

Student Book

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Name _____________________________________

Multiplication and Division

Series F – Multiplication and Division Contents       

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 division ______________________________________________

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 puzzles – apply ________________________________________

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!   "   #

% &'  $!!(

* +,,  " !#%!

Series Authors: Rachel Flenley Nicola Herringer

Copyright ©

Mental multiplication strategies – doubling strategy 0     )$       )  $   $. 15 × 4  1% 13 × 8 double once = 26    )13   )14!     $1*

1

     a

b

c

2

* 1

 !

4 6

3

4

D #

4 2

#

D *

!4

7

6 %

12 D

#3

%4 4

24 (

32 16

4

2

 

    a 4

( _________

16 __________

_________

64 __________

_________

b 3

_________

__________

_________

__________

#3 _________

c 4

_________

__________

* _________

__________

_________

d !4

4 _________

__________

_________

__________

_________

e 7

_________

!( __________

_________

__________

224 _________

f :4

_________

% __________

_________

__________

_________

3

         

  

4

Two sets of twins turn 12. They decide to have a joint birthday party with 1 giant cake but they all want         

Multiplication and Division Copyright © 3P Learning

F

1

SERIES

TOPIC

1

Mental multiplication strategies – doubling strategy 5

6

7

8

     !   ×2

×4

a 13 × 4

26 __________

52 __________

b 16 × 4

__________

__________

c 24 × 4

__________

__________

d !4× 4

__________

__________

e 32 × 4

__________

__________

f 21 × 4

__________

__________

g %4× 4

__________

__________

,-/  ,0/   

     !   ×2

×4

;(

a !;(

24 ____________

___________

96 ___________

b *;(

____________

___________

112 ___________

c !4;(

____________

___________

___________

d !;(

____________

84 ___________

___________

e %;(

____________

___________

___________

f 3;(

32 ____________

___________

___________

Work out the answers in your head using the appropriate doubling strategy. Use a table like the one above if it helps. a (;*1

b 16 × 4 =

c 26 × 4 =

d !*;(1

e 4;(1

f !!;(1

" #$ %    &&    ' #  ( ) * )- $  $ $)- &$$ $) ?- $  @&$@

2

F

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Multiplication and Division Copyright © 3P Learning

Mental multiplication strategies – multiply by 10s, 100s and 1,000s &$ ))" $  "  $A &$ ))" $  )"  $A &$ ))" $  $"  $A B- $) $)-) $ $ *4D Ten Thousands

Thousands

c

3

Ones

4 4 

4 4  

4   

; ; ;

) &  *9/*99*/999

a

2

Tens

4 4

4

1



T Th

T Th

Th

Th





T

O

1

7

T

O

(

4

b

T Th

Th



T

O

4

3

;

;

;

;

;

;

d

T Th

Th



T

O

#

#

;

;

;

;

;

;

,   a *;

1

b *; 1

c *;1

d #!;

1

e #!;1

f #!; 1

g ;1

h ; 1

i ;

1

:$&

! ,#  !        ;<  *99=>?0E,     

 ! /          #  *9  &  / @   '9    

Multiplication and Division Copyright © 3P Learning

F

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3

Mental multiplication strategies – multiply by 10s, 100s and 1,000s F $  - )$)  $!! $ 4 ×!$)- *×!D

*×!1(

& G $*× 2 ×1(

4

5

*×!1(

H)))- *×!@

    !   a 4;!

____________ 

4;!

____________ 

4;!

__________

b !;#

____________ 

!;#

____________ 

!;#

__________

c 6 × $4 ____________ 

3;
c $  ) !(&$  $  $ $  )3&$  $ @

6

4

 

    a 

!

% _________

_________

__________

3 _________

b !

*

_________

( _________

__________

_________

c %

3

_________

_________

4 __________

_________

d *

(

_________

_________

! __________

!* _________

e 4



4 _________

_________

__________

_________

f 

!

_________

* _________

__________

_________

g !

*

_________

_________

__________

! _________

F

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Multiplication and Division Copyright © 3P Learning

Mental multiplication strategies – split strategy K L      )-) $ $   B- 3*×( K  $  3 * &- 3× (  $ *×( M $ )  $*(N%!14!

1

2

       E  

a 46 × 4

b :*;4

c *(;*



*;*N3;*







OOOOOOONOOOOOOO

OOOOOOONOOOOOOO

OOOOOOONOOOOOOO

=

=

=

OOO;OOONOOO;OOO

OOO;OOONOOO;OOO

d 37 × 7

e 3!;(

f #;4







OOO;OOONOOO;OOO

OOO;OOONOOO;OOO

OOO;OOONOOO;OOO

OOOOOOONOOOOOOO

OOOOOOONOOOOOOO

OOOOOOONOOOOOOO

=

=

=

       E  ,

  & #    a *(;(1 OOOOOOOOOONOOOOOOOOOO1

It's a good thing I know how to work    &   C

b 4!;:1 OOOOOOOOOONOOOOOOOOOO1 c  #;*%1 OOOOOOOOOONOOOOOOOOOO1 d (;!#1 OOOOOOOOOONOOOOOOOOOO1 e (3;:1 OOOOOOOOOONOOOOOOOOOO1

3

These problems have been worked out incorrectly. Circle where it all went wrong.

a 37 × 6

b :;4

c %!;#



%;3N:;3



;4N:;4



%;#N!;#



(N%



:N%4



!:N(



1#%



14



1

Multiplication and Division Copyright © 3P Learning

*4

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Mental multiplication strategies – split strategy 4

H    +     ! J    ! correctly. There are errors in the other two. Find and color the winning trail.

L"L
32

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Multiplication and Division Copyright © 3P Learning