Sandra gives her age as a math expression:
80 − 40 ÷ 10 × 4
Division and multiplication have the same priority, so work from left to right:
40 ÷ 10 = 4
4 × 4 = 16
Now subtract:
80 − 16 = 64
Answer: Sandra is 64 years old.
Sandra gives her age as a math expression:
80 − 40 ÷ 10 × 4
Division and multiplication have the same priority, so work from left to right:
40 ÷ 10 = 4
4 × 4 = 16
Now subtract:
80 − 16 = 64
Answer: Sandra is 64 years old.