Jack is learning to ride a bicycle. In his first try, he rode for 1/100mile. The second time he rode for 5/100 mile. In the next two tries, he rode successfully for 2/10 mile and lo 4/10 mile Part A What is the total distance he rode the bike in four tries? Use words, numbers, or models o justify your answer. Part B How much farther must Jake ride to reach a total of one mile? Explain your answers

Add:

0.01 + 0.05 + 0.2 + 0.4 = ?

Subtract the above total from 1.00

Part A: To find the total distance Jack rode in four tries, we need to add up the distances he rode each time. Let's add them up:

1/100 mile + 5/100 mile + 2/10 mile + 4/10 mile

To make the calculation easier, let's convert all the fractions to the same denominator. The common denominator we can use here is 100.

1/100 mile + 5/100 mile + 20/100 mile + 40/100 mile

Now, let's add up the numerators:

1 + 5 + 20 + 40 = 66

The total distance Jack rode in four tries is 66/100 mile.

Part B: To find out how much farther Jack must ride to reach a total of one mile, we can subtract the distance he has already ridden from one mile.

1 mile - 66/100 mile

To subtract fractions, we need to find a common denominator. The common denominator here is 100.

100/100 mile - 66/100 mile

Now, let's subtract the numerators:

100 - 66 = 34

The answer is 34/100 mile, which can also be simplified to 0.34 miles. Therefore, Jack must ride an additional 0.34 miles to reach a total of one mile.