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Use mental math to simplify each expression 1. 36+12+4 2.19.2+0.6+12.4+ 0.8 3.2•16•10•5 4.12•18•0•16
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Use mental math to simplify each expression

1. 36+12+4
2.19.2+0.6+12.4+ 0.8
3.2•16•10•5
4.12•18•0•16

User Miles McCrocklin
by
6.7k points

2 Answers

3 votes

1.\\36+12+4=(36+4)+12=40+12=52\\\\2.\\19.2+0.6+12.4+0.8=(19.2+0.8)+(0.6+12.4)=20+13=33\\\\3.\\2\cdot16\cdot10\cdot5=(2\cdot5)\cdot(10\cdot16)=10\cdot160=1600\\\\4.\\12\cdot18\cdot0\cdot16=0\cdot(12\cdot18\cdot16)=0
User Karisa
by
6.4k points
0 votes
1) 36+12+4=40+12=52
2) 19.2+0.6+12.4+0.8=20+13=33
3) 2*16*10*5=10*10*16=100*16=1600
4) 12*8*0*16=0
User Aman Kumar Gupta
by
6.4k points
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