(a) \(11+(–7)\)
\(= 11-7\)
\(= 4\)
(b)\( (–13)+(+18)\)
\(= (-13)+18\)
\(= 5\)
(c)\( (–10)+(+19)\)
\(= -10+19\)
\(= 9\)
(d) \((–250)+(+150)\)
\(= -250+150\)
\(= -100\)
(e) \((–380)+(–270)\)
\(= -380-270\)
\(= -650\)
(f) \((–217)+(–100)\)
\(= -217+100\)
\(= -317\)
Column I shows different positions in which one pole of a magnet is placed near that of the other. Column II indicates the resulting action between them for each situation. Fill in the blanks.
Column I | Column II |
N-______ | _________ |
N-________ | Attraction |
S-N | |
________-S | Repulsion |
Draw:
1) a leaf
2) a taproot and
3) a flower,
you have studied for Table 4.3