Count by 10s
0 10 20 30 40 50 60 70 80 90 100
Round and subtract
50
Do you round up or down?
UP
Round to the nearest 100s
900
Round to the nearest 100s
400
Round and add
60
Count by 100s
0 100 200 300 400 500 600 700 800 900 1000
Round and add
60
Round to the neartest 10s
70
Round and subtract
40
Round to the nearest 100s
400
Round to the nearest 10s
50
Do you round up or down?
DOWN
Round to the nearest 10s
820