Genesis 8:3

And the waters receded from the earth {gradually}, and the waters abated at the end of one hundred and fifty days.

Genesis 7:24

And the waters prevailed over the earth one hundred and fifty days.

Genesis 7:11

In the six hundredth year of the life of Noah, in the second month, on the seventeenth day of the month--on that day all the springs of the great deep were split open, and the windows of heaven were opened.

Treasury of Scripture Knowledge

Summary

And the waters returned from off the earth continually: and after the end of the hundred and fifty days the waters were abated.

Hundred

General references

Bible References

Hundred

Genesis 7:11
In the six hundredth year of the life of Noah, in the second month, on the seventeenth day of the month--on that day all the springs of the great deep were split open, and the windows of heaven were opened.

General references

Genesis 7:24
And the waters prevailed over the earth one hundred and fifty days.