You will now practice all the skills you learned in Unit 4. Check your work using the answer key at the end of the review

1. Find the products.
   1. [latex]\begin{array}[t]{r} 0\\ \times7\\ \hline \\ \end{array}[/latex]
   2. [latex]\begin{array}[t]{r} 4\\ \times9\\ \hline \\ \end{array}[/latex]
   3. [latex]\begin{array}[t]{r} 3\\ \times5\\ \hline \\ \end{array}[/latex]
   4. [latex]\begin{array}[t]{r} 2\\ \times3\\ \hline \\ \end{array}[/latex]
   5. [latex]\begin{array}[t]{r} 3\\ \times8\\ \hline \\ \end{array}[/latex]
   6. [latex]\begin{array}[t]{r} 6\\ \times6\\ \hline \\ \end{array}[/latex]
   7. [latex]\begin{array}[t]{r} 7\\ \times4\\ \hline \\ \end{array}[/latex]
   8. [latex]\begin{array}[t]{r} 8\\ \times8\\ \hline \\ \end{array}[/latex]
   9. [latex]\begin{array}[t]{r} 9\\ \times6\\ \hline \\ \end{array}[/latex]
   10. [latex]\begin{array}[t]{r} 6\\ \times5\\ \hline \\ \end{array}[/latex]
   11. [latex]\begin{array}[t]{r} 5\\ \times9\\ \hline \\ \end{array}[/latex]
   12. [latex]\begin{array}[t]{r} 9\\ \times9\\ \hline \\ \end{array}[/latex]
   13. [latex]\begin{array}[t]{r} 3\\ \times6\\ \hline \\ \end{array}[/latex]
   14. [latex]\begin{array}[t]{r} 4\\ \times8\\ \hline \\ \end{array}[/latex]
   15. [latex]\begin{array}[t]{r} 8\\ \times6\\ \hline \\ \end{array}[/latex]
   16. [latex]\begin{array}[t]{r} 7\\ \times8\\ \hline \\ \end{array}[/latex]
2. Multiply across or horizontally.
   1. 7 × 7 =
   2. 9 × 7 =
   3. 2 × 9 =
   4. 4 × 4 =
   5. 3 × 4 =
   6. 5 × 7 =
   7. 8 × 5 =
   8. 6 × 4 =
3. Find the products.
   1. 10 × 4 =
   2. 7 × 100 =
   3. 100 × 5 =
   4. 1 × 10 =
   5. 1 000 × 8 =
   6. 10 × 9 =
   7. 100 × 8 =
   8. 7 × 1000 =
   9. 1000 × 2 =
   10. 6 × 10 =
   11. 9 × 100 =
   12. 4 × 1000 =
4. Word Problems.
   1. During a fishing derby, 8 people caught 7 fish each. How many fish were caught in all?
   2. Manuel was told to make 10 rows of 6 cans each. How many cans were there in all?
   3. For graduation, there were 10 rows of 100 chairs each. How many chairs were there altogether?
   4. In the cafeteria, there are 9 tables with 8 chairs at each table. How many chairs are there in all?
   5. Find the area of the rug. Remember to include the units of measure.
      
   6. Find the area of the photograph.
      

Answers to Unit 4 Review

1. 1. 0
   2. 36
   3. 15
   4. 6
   5. 24
   6. 36
   7. 28
   8. 64
   9. 54
   10. 30
   11. 45
   12. 81
   13. 18
   14. 32
   15. 48
   16. 56
2. 1. 49
   2. 63
   3. 18
   4. 16
   5. 12
   6. 35
   7. 40
   8. 24
3. 1. 40
   2. 700
   3. 500
   4. 10
   5. 8000
   6. 90
   7. 800
   8. 7000
   9. 2000
   10. 60
   11. 900
   12. 4000
4. 1. 56 fish
   2. 60 cans
   3. 1000 chairs
   4. 72 chairs
   5. 63 square metres
   6. 70 square centimetres