A student estimates that 10.2 8.3 is 80.
The student rounded 10.2 to__ (9,10,11)
The student rounded 8.3 to __ (8,9,10)
The actual product of (10.2)(8.3) is __ (80,80.66,84.66)
The student's estimate is __ (higher, lower) than the actual product.