MathCastle
Grade 5SuperchallengeOrder of Operations

Order of Operations · Superchallenge problem

The expression 48÷4×2+6×248 \div 4 \times 2 + 6 \times 2 has the value 3636. There are 1010 ways to put one pair of parentheses around two or more neighbouring numbers (including around the whole thing). In how many of these ways does the value change?