Exercise #9 in the online Quiz for 7.1 to 7.4 has an error in it. There are not 10 questions. There are 7 questions with 14 points correct, 16 points total. Right?
BTW - You guys did a great job with this book! I love how the numbers work together in the problem solving so that there is a great review of +,-, X, / of fractions and decimals in the midst of good problem solving questions. It also has the most accurate answer key from any math series I have EVER worked with. ( This is year 37 for me.)
