3 Comments on Multiplication Homework

1. 

   Matthew Coulson

   January 6, 2011 at 10:00 pm (13 years ago)

   Multiplication Homework January 6th, 2011
   Math by:Matthew Coulson
   1.Create an array of 14 cm x 11cm.
   Answer:I found my answer by putting 14cm up then I put
   11cm down so I counted my units and added them together and my answer added up to a total of 154cm.

   2. Answer the following 16×13 using our strategy of breaking the number apart in parts.
   Answer: 3×6=18,3×10=30,6×10=60,10×10=100
   18+30+60+100=208

   3. Use this mental math strategy to solve this question
   (example: 12 x 15– 12×10=120, 12×5=60, add together and get 180)
   A:13×11 B:21X11
   Answer: A:10×10=100,3×10=30,1×10=10,3×1=3 Total=143
   100+30+10+3=143
   B:20×10=200 10×1=10 1×1=1 Answer 211
   200+10+1=211

   Dear classmates I have a math question to solve. Make an Array for 47×23 Answer:835 thats eight hundred thirty five

2. 

   Sofia

   January 9, 2011 at 12:34 pm (13 years ago)

   UMM MR.WOODS HOMEWORK ?????

3. 

   Maya

   January 9, 2011 at 6:46 pm (13 years ago)

   1. X X X X X X X X X X X X X X
   X X X X X X X X X X X X X X
   X X X X X X X X X X X X X X
   X X X X X X X X X X X X X X
   X X X X X X X X X X X X X X
   X X X X X X X X X X X X X X X=1cm square
   X X X X X X X X X X X X X X
   X X X X X X X X X X X X X X
   X X X X X X X X X X X X X X
   X X X X X X X X X X X X X X
   X X X X X X X X X X X X X X

   2. 16
   X13
   3X6 = 18
   208 3X10= 30
   10X6 = 60
   10X10= 100

   208
   3.a) 13X11 = 11X10=110 + 11X3=33 = 110+33 = 143
   b) 21X11 = 11X20=220 + 11X1=11 = 220+11 = 231