a) 15 + 2 × 9 = 15 + 18 = 33 b) 6 : 3 × 2 = 2 × 2 = 4 c) 0,12 + 0,04 = 0,16 d)0,48 : 0,8 : 0,3 = 0,6 : 0,3 = 2
a) 15 + 2(17 - 8) = 15 + 2*9 = 15 +18 = 33 b) 66:11:3*2 = 6:3*2 = 4 [latex]c)frac{4}{10} * frac{3}{10} + ( frac{2}{10} )^{2} = frac{4}{10} * frac{3}{10} + frac{4}{100} = frac{12}{100} + frac{4}{100} = frac{16}{100} = frac{4}{25} [/latex] [latex]d) frac{48}{100} : frac{8}{10} : (1 - frac{7}{10}) = frac{48}{100} : frac{8}{10} : ( frac{10}{10} - frac{7}{10}) = frac{48}{100} : frac{8}{10} : frac{3}{10} = frac{48}{100} * frac{10}{8} :frac{3}{10}[/latex] = [latex] frac{3}{5} * frac{10}{3} = 2[/latex]
