Unit 6How many classrooms are there in your school?eleventwelvethirteenfourteenfifteen1112131415sixteenseventeeneighteennineteentwenty161718192030 thirty 40 forty50 fifty 60 sixty70 seventy 80 eighty90 ninetyHow many computers are there in the?computer roomThere are fifty computers.treeHow many trees are there in the picture?There is one.How many trees are there in the garden?There are thirty-five trees.How many balls are there in the playgroud?There are twenty-eight balls.forty-two chairs.Ther
