Question

Найди их значения упражнение 3

Answer 1

$(a + b) \div c = (30 + 5) \div 7 = 35 \div 7 = 5$

$(a + b) + c = (15 + 25) + 12 = 40 + 12 = 52$

$a + (b + c) = 15 + (25 + 12) = 15 + 37 = 52$

$(a - b) + c = (30 - 12) + 3 = 18 + 3 = 21$

$a -( b + c) = 30 -( 12 + 3) = 30 - 15 = 15$