Add. Write the sum in simplest form.
- 6
2
6 2.^8
1
4 3.^4
3
5 4.^2
3
8 5.^9
2
7
7
4
6 ^5
1
4 ^3
1
5 ^1
5
8 ^6
4
7
- 5 1
4
2 7.^7
2
9 8.^26
3
4 9.^36 1
3
0 10.^47
3
8
5 1
6
2 ^8
4
9 ^17
1
4 ^28 1
5
0 ^54
3
8
Subtract. Write the difference in simplest form.
- 9 ^1102 12. 5 ^23 13. 8 ^34 14. 6 ^45 15. 10 ^78
7 172 1 ^13 3 ^14 4 ^25 2 ^58
- 57 ^56 17. 32 ^67 18. 40 ^89 19. 23 190 20. 12 ^12
48
2
6 ^27
1
7 ^18
5
9 ^23 1
3
0 ^7
1
2
Align and add or subtract. Watch the signs.
- 18
1
1
1
2 ^9 1
1
2 22.^14 1
7
0 ^8 1
3
0 23. 21
2
6 ^5
2
6 24.^31
6
8 ^9
2
8
- 1 ^68 19 ^28 26. 6 ^29 17 ^19 27. 30 190 2 110 28. 42 ^15 8 ^35
- The fence around Lucy’s garden was 7 142 ft high.
She put chicken wire at the top so it is now
10 172 ft high. How many feet of wire did she add
to the height of the fence?
Add or subtract. Watch the signs.
- 8
7
8 ^4 31.^9 ^5
2
3 32.^7 1
9
0 ^6 33.^10
3
4 ^9
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