You will now practice all the skills you learned in Unit 2. Check your work using the answer key at the end of the review.

1. Check out your addition facts.
   1. [latex]\begin{align*} 5\\ +6\\ \hline \\ \end{align*}[/latex]
   2. [latex]\begin{align*} 8\\ +2\\ \hline \\ \end{align*}[/latex]
   3. [latex]\begin{align*} 3\\ +4\\ \hline \\ \end{align*}[/latex]
   4. [latex]\begin{align*} 9\\ +7\\ \hline \\ \end{align*}[/latex]
   5. [latex]\begin{align*} 7\\ +10\\ \hline \\ \end{align*}[/latex]
   6. [latex]\begin{align*} 6\\ +8\\ \hline \\ \end{align*}[/latex]
   7. [latex]\begin{align*} 9\\ +4\\ \hline \\ \end{align*}[/latex]
   8. [latex]\begin{align*} 2\\ +3\\ \hline \\ \end{align*}[/latex]
   9. [latex]\begin{align*} 8\\ +4\\ \hline \\ \end{align*}[/latex]
   10. [latex]\begin{align*} 3\\ +3\\ \hline \\ \end{align*}[/latex]
   11. [latex]\begin{align*} 9\\ +9\\ \hline \\ \end{align*}[/latex]
   12. [latex]\begin{align*} 5\\ +4\\ \hline \\ \end{align*}[/latex]
   13. [latex]\begin{align*} 1\\ +2\\ \hline \\ \end{align*}[/latex]
   14. [latex]\begin{align*} 3\\ +1\\ \hline \\ \end{align*}[/latex]
   15. [latex]\begin{align*} 6\\ +9\\ \hline \\ \end{align*}[/latex]
   16. [latex]\begin{align*} 5\\ +3\\ \hline \\ \end{align*}[/latex]
2. Add across or horizontally.
   1. 8 + 7 =
   2. 0 + 3 =
   3. 8 + 10 =
   4. 5 + 2 =
   5. 2 + 2 =
   6. 7 + 5 =
   7. 9 + 8 =
   8. 3 + 6 =
   9. 9 + 5 =
   10. 1 + 5 =
3. Find the sums.
   1. [latex]\begin{align*} 6\\ 2\\ +4\\ \hline \\ \end{align*}[/latex]
   2. [latex]\begin{align*} 5\\ 2\\ +1\\ \hline \\ \end{align*}[/latex]
   3. [latex]\begin{align*} 4\\ 4\\ +8\\ \hline \\ \end{align*}[/latex]
   4. [latex]\begin{align*} 3\\ 4\\ +5\\ \hline \\ \end{align*}[/latex]
   5. [latex]\begin{align*} 2\\ 3\\ +4\\ \hline \\ \end{align*}[/latex]
   6. [latex]\begin{align*} 6\\ 4\\ +7\\ \hline \\ \end{align*}[/latex]
   7. [latex]\begin{align*} 3\\ 4\\ +6\\ \hline \\ \end{align*}[/latex]
   8. [latex]\begin{align*} 7\\ 2\\ +4\\ \hline \\ \end{align*}[/latex]
   9. [latex]\begin{align*} 3\\ 6\\ +8\\ \hline \\ \end{align*}[/latex]
4. Find the sums.
   1. [latex]\begin{align*} 26\\ +30\\ \hline \\ \end{align*}[/latex]
   2. [latex]\begin{align*} 42\\ +57\\ \hline \\ \end{align*}[/latex]
   3. [latex]\begin{align*} 44\\ +32\\ \hline \\ \end{align*}[/latex]
   4. [latex]\begin{align*}32\\ +81\\ \hline \\ \end{align*}[/latex]
   5. [latex]\begin{align*} 83\\ +13\\ \hline \\ \end{align*}[/latex]
   6. [latex]\begin{align*} 76\\ +12\\ \hline \\ \end{align*}[/latex]
   7. [latex]\begin{align*} 34\\ +51\\ \hline \\ \end{align*}[/latex]
   8. [latex]\begin{align*} 54\\ +22\\ \hline \\ \end{align*}[/latex]
   9. [latex]\begin{align*} 52\\ +43\\ \hline \\ \end{align*}[/latex]
   10. [latex]\begin{align*} 25\\ +42\\ \hline \\ \end{align*}[/latex]
   11. [latex]\begin{align*} 72\\ +35\\ \hline \\ \end{align*}[/latex]
   12. [latex]\begin{align*} 66\\ +12\\ \hline \\ \end{align*}[/latex]
5. Find the sums.
   1. [latex]\begin{align*} 342\\ +523\\ \hline \\ \end{align*}[/latex]
   2. [latex]\begin{align*} 725\\ +142\\ \hline \\ \end{align*}[/latex]
   3. [latex]\begin{align*}362\\ +417\\ \hline \\ \end{align*}[/latex]
   4. [latex]\begin{align*} 425\\ +172\\ \hline \\ \end{align*}[/latex]
   5. [latex]\begin{align*} 284\\ +314\\ \hline \\ \end{align*}[/latex]
   6. [latex]\begin{align*} 315\\ +132\\ \hline \\ \end{align*}[/latex]
   7. [latex]\begin{align*} 363\\ +415\\ \hline \\ \end{align*}[/latex]
   8. [latex]\begin{align*} 741\\ +225\\ \hline \\ \end{align*}[/latex]
   9. [latex]\begin{align*} 404\\ +445\\ \hline \\ \end{align*}[/latex]
   10. [latex]\begin{align*} 654\\ +215\\ \hline \\ \end{align*}[/latex]
   11. [latex]\begin{align*} 234\\ +352\\ \hline \\ \end{align*}[/latex]
   12. [latex]\begin{align*} 525\\ +431\\ \hline \\ \end{align*}[/latex]
6. Word problems. Find the perimeter of the shape. Be sure to put the unit of measure in your answer. Write the name of the shape below the picture.
   1. 
   2. 
   3. The CN Tower in Toronto is 554 metres high. On top of the tower is a TV mast that is 122 metres high. What is the total height of the tower and TV mast?
   4. Seung weighs 36 kilograms. His father weighs 62 kilograms. How much do they weigh altogether?

Answers to Unit 2 Review

1. 1. 11
   2. 10
   3. 7
   4. 16
   5. 17
   6. 14
   7. 13
   8. 5
   9. 12
   10. 6
   11. 18
   12. 9
   13. 3
   14. 4
   15. 15
   16. 8
2. 1. 15
   2. 3
   3. 18
   4. 7
   5. 4
   6. 12
   7. 17
   8. 9
   9. 14
   10. 6
3. 1. 12
   2. 8
   3. 16
   4. 12
   5. 9
   6. 17
   7. 13
   8. 13
   9. 17
4. 1. 56
   2. 99
   3. 76
   4. 113
   5. 96
   6. 88
   7. 85
   8. 76
   9. 95
   10. 67
   11. 107
   12. 78
5. 1. 865
   2. 867
   3. 779
   4. 597
   5. 598
   6. 447
   7. 778
   8. 966
   9. 849
   10. 869
   11. 586
   12. 956
6. 1. 8 metres, rectangle
   2. 20 metres, square
   3. 676 metres
   4. 98 kilograms