Mathematical problems (simple calculation, 1 1-2+3-4+5…… +101 2 498 by 498-499 by 497 3 26.04 - (4.35 divided by 1.5 + 0.9) multiplied by 4.2 4 3.01-0.25 times 0.4 divided by 0.25 times 0.4 | Math enthusiast | Mathematical art

Mathematical problems (simple calculation, 1 1-2+3-4+5…… +101 2 498 by 498-499 by 497 3 26.04 - (4.35 divided by 1.5 + 0.9) multiplied by 4.2 4 3.01-0.25 times 0.4 divided by 0.25 times 0.4

1:=(1-2)+(3-4)+(5-6).+(99-100)+101=-1 -1 -1...-1+101=512:498*498-499*497=498*498-(498+1)*(498-1)=498*498-498*498+498-498+1=13:=26.04-(2.9+0.9)*4.2=26.04-(4.0-0.2)*(4.0+0.2)=26.4-16+0.04=104:=3.01-0.25...

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