The expression 9 × 9 + 9 ÷ 9 must be solved using the correct order of operations.
Complete multiplication and division first:
9 × 9 = 81
9 ÷ 9 = 1
Now add the results:
81 + 1 = 82
The correct answer is 82.
Many people get this wrong because they calculate the equation from left to right without completing multiplication and division first.
This visual counting puzzle asks a simple question: How many parrots are there? The challenge comes from the smaller parrots that are partly hidden behind larger birds….
This quick math puzzle looks simple, but it still catches people who ignore the order of operations. The expression is: 4 × 4 + 4 ÷ 4…
This puzzle is designed to make you add too quickly. The expression is: 15 + 15 × 0 + 5 According to the order of operations, multiplication…
This equation is a classic source of arguments because the notation can look more confusing than it really is. The expression is: 12 ÷ 3(1 + 3)…
This family puzzle takes a little algebra, but the wording gives you everything you need. Suppose there are b boys and s girls. For a boy, the…
This drawer puzzle depends on what we mean by a matching pair. The usual interpretation is that the 10 socks form 5 distinct pairs. In the worst…
