Baiklah untuk soal selanjut nya…
Penjumlahan
1. (+11) + (+4)
2. (-6) + (-12)
3. (+8) + (-1)
4. (+3) + (-10)
5. (+16) + (-16)
6. (-7) + (+2)
7. (-9) + (+13)
8. (+0,6) + (-1,8)
9. (-2,7) + (-3,5)
10. (-13) + (+12)
11. (-3) + (-5)
Pembahasan:
1. (+11) + (+4) = 11 + 4 = 15
2. (-6) + (-12) = -6 – 12 = -18
3. (+8) + (-1) = 8 – 1 = 7
4. (+3) + (-10) = 3 – 10 = -7
5. (+16) + (-16) = 16 – 16 = 0
6. (-7) + (+2) = -7 + 2 = -5
7. (-9) + (+13) = -9 + 13 = 4
8. (+0,6) + (-1,8) = 0,6 – 1,8 = -1,2
9. (-2,7) + (-3,5) = -2,7 – 3,5 = -6,2
10. (-1/3) + (+1/2) = –1/3 + 1/2 = –2/6 + 3/6 = 1/6
11. (-3/4) + (-5/12) = –9/12 – 5/12 = –14/12 = –7/6
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