680
6
680
ivy
There are 6 tens in 68.
Tens in 840: 84. Tens in 680: 68
68
67, 68 and 69.
HOW MUCH IS 10 TENS
There are 6 tens in 68.
Tens in 840: 84. Tens in 680: 68
68
68
68 rounds up to 100 as its tens place is occupied by a 6.
Six tens, or 60.
67, 68 and 69.
60 + 8
HOW MUCH IS 10 TENS
68
18 tens = 180
500 + 680 + 031 ------- 1,211