When you add TENS, you may need to regroup TENS to HUNDREDS.
For
example:
5 TENS + 7 TENS = 12 TENS or 1 HUNDRED + 2 TENS.
Look at the examples below.
5 TENS
+
7 TENS
Equals
12 TENS
OR
1 HUNDRED
+
2 TENS
Equals 12 TENS or 1 HUNDRED + 2 TENS
Regroup.
8 TENS + 7 TENS =
TENS = 1 HUNDRED
+ 5 TENS
9 TENS + 7 TENS =
TENS =
HUNDRED +
TENS
3 TENS + 8 TENS =
TENS =
HUNDRED +
TEN
7 TENS + 9 TENS =
TENS = 1 HUNDRED
+
TENS
2 TENS + 9 TENS = 11 TENS =
HUNDRED +
TEN
4 TENS + 6 TENS =
TENS =
HUNDRED +
TENS
5 TENS + 8 TENS =
TENS = 1
HUNDRED +
TENS
6 TENS + 9 TENS =
TENS =
HUNDRED +
TENS
8 TENS + 9 TENS =
TENS =
HUNDRED +
TENS
9 TENS + 9 TENS =
TENS =
HUNDRED +
TENS
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