(a) \((–7)+(–9)+4+16\)
\(= -7-9+4+16\)
\(= -16+20\)
\(= 4\)
(b) \((37)+(–2)+(–65)+(–8)\)
\(= 37-2-65-8\)
\(= 37-75\)
\(= -38\)
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