.
Round the 2 or 3 digit numbers to the nearest 10 both up and down, and then circle or highlight the closer of the two values to round to the
nearest 10.
e.g.
320 324 330
Next move on to
Integer Rounding to Nearest 10 for rounding directly to the nearest 10 without the intermediate step of rounding up and down, or to
Round Up and Down to Nearest 100 to practice rounding larger numbers.