Idon't understand this, can someone ?

It is less than 1 because .31 + 5/9   < 1

Step-by-step explanation:

.31 - (-5/9)

.31 + 5/9

31/100 + 5/9

estimating

1/3 + 2/3

this is approximately 1

but 1/3 = .33333333  is greater than .31 and 2/3  = 6/9  is greater than 5/9

so .31 + 5/9 < 1

22 dimes and 9 nickels

step-by-step explanation:

50*10 is greater

step-by-step explanation:

if you add the zero from 10 to 50, it will give you a bigger number.