Brackets are boxes: open them first. Then × and ÷, then + and −, each from left to right.
Tap the sign you'd work out first.
1. Brackets: open the boxes first.
2. Then × and ÷, from left to right.
3. Then + and −, from left to right.
Some schools call this BODMAS, BIDMAS or PEMDAS.
It's the rule for which part of a sum to work out first, so everyone gets the same answer. Brackets come first, then multiplying and dividing, then adding and subtracting. 3 + 4 × 2 is 3 + 8 = 11, not 7 × 2 = 14.
Brackets, Orders (powers like 5²), Division and Multiplication, Addition and Subtraction. BIDMAS uses Indices for the powers, and PEMDAS (used in the USA) says Parentheses and Exponents. They all describe the same order.
No. Multiplication and division are equal partners: work them out from left to right, whichever comes first. The same goes for addition and subtraction, so 10 − 3 + 2 is 7 + 2 = 9, not 10 − 5.
Children usually meet brackets in sums at about 9 to 10, and learn the full order of operations, often as BODMAS or BIDMAS, at about 10 to 11.