Question

What is the word form and expanded form for 2.51

Answer 1

two and fifty-one tenths
2+2.00+5+1=2.51

Answer 2

The word form of 2.51 is two and fifty-one hundredths. It has an expanded form of
2 x 1 + 5 x .1 + 1 x .01=2.51 where;
2 x 1 = 2
5 x .1 = .5
1 x .01 = .01
Add.
     2
      .5
+    .01
    2.51

or you can also have its fraction form,
2 x 1/1 + 5 x 1/10 + 1 x 1/100 where,
2 x 1/1=2/1 or 2
5 x 1/10=5/10 or 0.5
1 x 1/100= 1/100 or 0.01
Add.
    2
      .5
+    .01
    2.51