Explain the strategy to your buddy
What would you do?
1. Each group of desks in the class had 14 desks. There were 9 groups in the class. How many desks were there altogether.
2. David has 24 boxes that each contain 12 dinosaur toys. How many toys does he have altogether?
3. Mrs Campbell loves chocolate. She got a bargain. She purchased 16 cartons, each carton had 8 crunchie bars in it. It cost $7 per carton. How many crunchie bars did she get and how much did she spend?
Show your working out using images and your voice.
Try these
1. 7 x 4= ...... 14 x 4 =..........
2. 6 x 6 = ........ 12 x 6 = .......
3. 9 x 5 = ........ 18 x 5 = .........
fill in the gaps
8 x 5 = ......... ___ x 5 = .........
___ x 3 = 21 14 x ___ = ........
Create 3 of your own:)
I know why you are doubling 16 it is to help you get to 8x4=32 because if you don't know your 4 times tables how would you know the answer.You would do it the hard way.
ReplyDeletefrom margaret
13 x 7, neither of these numbers double or halve easily
ReplyDeleteFrom Katelyn
13x7= I know what 11x7=77 so I just add 13 on the answer =94
ReplyDeleteYou could do this 7 x 3 and then add 3 7 by Steph
ReplyDeleteThe way for me to solve it 12x7=84 so add 7 it is 91.
ReplyDeleteWillem
13x7 =91 by steph
ReplyDelete13x7.
ReplyDeleteNice trick Mrs Campbell if it was a trick.
It =91 because I go 7x10=70 then 7x3=23 easy
10x7=70 and 3x7=21so 21+70=91!!!!
ReplyDeleteSheena
13 x 7 =
ReplyDelete13 is made out of 10 and 3
So
10 x 7 = 70
3 x 7 = 21
So 70 + 21 = 91
So that's your answer
91
13x7=???
ReplyDelete10x7=20
3x7=21
Add them together wich makes 91