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Em uma rápida pesquisa online encontrei mais de 36 mil exercícios de calculo. Para simplificar, eu selecionei 37 os que considero os mais bons. Boa procura! 1. 3x=6 2. 2x=5 3. 1/4x=6/8 4. 2/9x=9/16 ___________________________ 5. 1+7+9+11+13+17 ___________________________ 6. 8+9+11+13+17 ___________________________ 7. (2x-3)/(1/4)x= (2/4)-(3/4)x ___________________________ 8. (2x*7)=5x ___________________________ 9. 2/12x=12/24 1. 20, 10, 3, 4, 8, 3 2. 23, 20, 10, 9, 5 3. 22 4. 35 5. 22 6. 16 7.(24-16)*100%=166% ___________________________ 8.(24-35)*100%=162% ___________________________ 9. 40%+(20%*5%)=48% ___________________________ 10. 100%-10%-3%-8%-3%=96%-96%-3%-8%-3% ___________________________ 11. 15-8+12+8-8+8-6=22/34 ___________________________ 12. 8-4+8-6+8-4=23/36 _______________________ 13. 2-3+4+348=450 _______________________ 14. 11/16-5*50%=6/15 _______________________ 15. 45-15/43+15%1.5%=52% _______________________ 16. (10x*6)+5*30%=105-90 _______________________ 17. 3x1.5x0.7x0.2x0+12xy=(3*(2x3))/(4*(3x2))=(2*(3))/(4*(5x1))=(6)/(7) x = 23 1. 3x=6 2. 2x=5 3. 1/4x=6/8 4. 2/9x=9/16 ___________________________ 5. 1+7+9+11+13+17 ___________________________ 6. 8+9+11+13+17 ___________________________ 7. (2x-3)/(1/4)x= (2/4)-(3/4)x ___________________________ 8. (2x*7)=5x ___________________________ 9. 2/12x=12/24 1. 20, 10, 3, 4, 8, 3 2. 23, 20, 10, 9, 5 3. cfa1e77820
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