Multiplication Magic

  Multiplication Magic

We are learning to use place value to solve multiplication problems using whole numbers.

Times table practice:

5 x 5 =  25                       7x7= 49

4 x 4=  16                         8 x 8= 64

3 x 3 =   9                       11x 11= 1221

6 x 6=    36                         5 x 4= 20

9 x 9 =     81                     10 x 10= 100

Factors of 16 = 1, 2, 4, 8, 16

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Multiples of 8 = 8,16,24,32,40,48,56,64,72,80

A prime number is  = 1,3,5,7,11,13,17,19,21

25 x 25 = 625

20 x 25 = 500

5 x 25 =  125

25 x 245 =  6150

200 x 25 =   5000

40 x 25 = 1000

5 x 25 = 125

267 x 250 = 66750

200 x 267 =  53400

50 x 267 = 13350

    Show your working under each problem:

1.  Mrs Flavelle orders 15 boxes of cookies for camp. If each box contains 18 cookies. How many are
there altogether?  15x10= 1500 8x 15= 120 1500+120= 1620

2. Mrs Tele’a orders 12 cans of beans for camp. Each tin contains 240 beans. How many individual
beans has she ordered? 12x 200= 24000 12x40= 480    24480

3. Room 4 is baking a rectangular cake for the garage sale. It is 22cm long and 16cm wide. What
is the area of the cake?  352cm 

4. Marika has brought some lollies in to share with the class for her birthday. She has brought
14 packets which contain 32 lollies each. How many lollies are there altogether? 14x16 = 224
  224x 2 = 448 16x2 = 32 

5. If each of the 160 students in team five paid 135 dollars for camp, how much money would
the camp make from our visit? 21600 because 160x 100= 16000  160x35= 10000