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Thursday, 30 March 2017

Place value Paritioning


WAHLT:Solve multiplication equations using place value partitioning

213 x 5

I know that 213 was a big number so I split it into 100’s,10’s and 1’s and then multiplied each of the numbers by 5

(200x5)+(10x5)+(3x5)=

Then I further split the 200 into 100’s     
So (100 +100) x 5 = 100 x 5 + 100 x 5
500 + 500 = 1000
10 x 5 = 50 or 10+10+10+10+10=50

3x5= 15 or 5+5+5=15

So 1000+50+15=1065

By Sarah

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