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Math (thinking + fun) = Math thinking + Math fun!.

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Presentation on theme: "Math (thinking + fun) = Math thinking + Math fun!."— Presentation transcript:

1 Math (thinking + fun) = Math thinking + Math fun!

2  Distributive property of multiplication over addition. a(b+c)= ab + ac or 2(4 + 6) = (2x4) + (2x6) = 8 + 12 = 20 Distribute – to give out, deal out

3  How would you solve these equations? 5(2+8)=s 12(6+3)=p 6(3+9)=c Distribute – to give out, deal out s = 50 p = 108 c = 72

4  Distributive property of multiplication over subtraction. a(b-c)= ab - ac or 2(14 - 6) = (2x14) - (2x6) = 28 - 12 = 16 Distribute – to give out, deal out

5  a(b+c)=ab +bc or a(b-c) = ab - ac  When you rewrite the expression from left to right this is called expanding the expression or distributing a over b + c or distributing a over b – c.  The property also applies when there are more than two terms. Distribute – to give out, deal out

6  How would you solve these equations? 3(1+5 +6)=s 2(6 + 3 + 2)=p 5 (8 – 3) = c Distribute – to give out, deal out

7  How would you solve these equations? 3(1+5 +6) = (3x1)+(3x5)+(3x6) 2(6 + 3 + 2)= (2x6) + (2x3) + (2x2) 5 (8 – 3) = (5x8) – (5x3) Distribute – to give out, deal out

8  How would you solve these equations? 3(1+5 +6)=s 2(6 + 3 + 2)=p 5 (8 – 3) = c Distribute – to give out, deal out s = 36 p = 22 c = 25

9  How can the Distributive Property help you solve these multiplication problems? 607 x 5 =m16 x 102 = n 420 x 7 =o285 x 5 =p 44 x 60 = q220 x 19 = r 45 x 280 = s341 x 32 = t Using the Distributive Property

10  607 x 5 = (600x5) + (7x5) = 3000+ 35= 3035 16x102 = (16x100) + (16x2) = 1600 + 32= 1632 Write it out!

11  Let’s show the rest on the board! We Are Geniuseseses!


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