Question

Поставь скобки так, чтобы равенство стало верным. 50-18:3•2=47 10+30-5:5=15

Answer 1

1)50-18:(3×2)=47
2)10+(30-5):5=15

Answer 2

To make the equations true, you need to add parentheses to indicate the correct order of operations. Remember the order of operations is: parentheses, exponents, multiplication and division (from left to right), and finally addition and subtraction (from left to right). Here are the corrected equations:

1. 50 - (18:3) * 2 = 47 Explanation: First, perform the division inside the parentheses (18 ÷ 3 = 6), then multiply by 2 to get 12. Finally, subtract 12 from 50 to get 38.

2. (10 + 30) - (5:5) = 15 Explanation: First, perform the addition inside the first parentheses (10 + 30 = 40). Then, perform the division inside the second parentheses (5 ÷ 5 = 1). Finally, subtract 1 from 40 to get 39.

With the above parentheses, both equations become true:

1. 50 - (18:3) * 2 = 50 - 6 * 2 = 50 - 12 = 38
2. (10 + 30) - (5:5) = 40 - 1 = 39