Question

$a)58.9 + 3.45 =$
$b)\frac{5}{3} \div \frac{4}{3 } + \frac{7}{5} =$
$c)4 + 8 \times 4 \div 2 - 1 =$
$d)7.5 \times ( - 3.42) + 45 =$

Answer 1

a) 58.9 + 3.45 = 62.35

b) (5/3) ÷ (4/3) + 7/5 = (5/3) * (3/4) + 7/5 = 5/4 + 7/5 = 25/20 + 28/20 = 43/20

c) 4 + 8 * 4 ÷ 2 - 1 = 4 + 32 ÷ 2 - 1 = 4 + 16 - 1 = 20 - 1 = 19

d) 7.5 * (-3.42) + 45 = 25.65 + 45 = 70.65