Question

2. How many tens should be added to the result after subtracting 10 units
from 42 tens for getting the sum five hundred?
(1) 90 (2) 9 (3) 180 (4) 18
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Answer 1

Answer:

I think 9 or , 18

Step-by-step explanation:

i think it would be helpful

Answer 2

Answer:

42tens means 420units

420-10=410

for getting 500

500-410=90

therefor 9tens should be added.