Well, isn't that a happy little question! In 3.4, there are 34 tenths. You see, each whole number is made up of 10 equal parts called tenths. So, in 3.4, you have 3 whole numbers and 4 tenths. Happy painting!
There are 34 tenths in 3.4. This is because the number 3.4 can be broken down into 3 whole units and 4 tenths. In decimal form, 3.4 is equivalent to 3 + 4/10, which simplifies to 3.4.