计算题:(1)−8÷49×(−23)2(2)(-15)-18÷(-3)+|-5|(3)-82+(-8)2+5×(-6)(4)(−24)×(−38−16+34).
计算题:
(1)−8÷×(−)2
(2)(-15)-18÷(-3)+|-5|
(3)-82+(-8)2+5×(-6)
(4)(−24)×(−−+).−8÷×(−)2
(2)(-15)-18÷(-3)+|-5|
(3)-82+(-8)2+5×(-6)
(4)(−24)×(−−+).4 |
4 | 9 |
9 | 2 |
2 | 3 |
3 | )2
(2)(-15)-18÷(-3)+|-5|
(3)-82+(-8)2+5×(-6)
(4)(−24)×(−−+).)2
(2)(-15)-18÷(-3)+|-5|
(3)-82+(-8)2+5×(-6)
(4)(−24)×(−−+).2
(2)(-15)-18÷(-3)+|-5|
(3)-82+(-8)2+5×(-6)
(4)(−24)×(−−+).22(−24)×(−−+).3 |
3 | 8 |
8 | 1 |
1 | 6 |
6 | 3 |
3 | 4 |
4 |
答案和解析
(1)
−8÷×(−)2
=-8××
=-8;
(2)(-15)-18÷(-3)+|-5|
=-15+6+5
=-4;
(3)-82+(-8)2+5×(-6)
=-64+64-30
=-30;
(4)(−24)×(−−+)
=9+4-18
=-5. −8÷
4 |
4 | 4
9 |
9 | 9×(−
2 |
2 | 2
3 |
3 | 3)
2
=-8××
=-8;
(2)(-15)-18÷(-3)+|-5|
=-15+6+5
=-4;
(3)-82+(-8)2+5×(-6)
=-64+64-30
=-30;
(4)(−24)×(−−+)
=9+4-18
=-5. 2
=-8×
×
=-8;
(2)(-15)-18÷(-3)+|-5|
=-15+6+5
=-4;
(3)-82+(-8)2+5×(-6)
=-64+64-30
=-30;
(4)(−24)×(−−+)
=9+4-18
=-5. 9 |
9 | 9
4 |
4 | 4×
=-8;
(2)(-15)-18÷(-3)+|-5|
=-15+6+5
=-4;
(3)-82+(-8)2+5×(-6)
=-64+64-30
=-30;
(4)(−24)×(−−+)
=9+4-18
=-5. 4 |
4 | 4
9 |
9 | 9
=-8;
(2)(-15)-18÷(-3)+|-5|
=-15+6+5
=-4;
(3)-8
22+(-8)
22+5×(-6)
=-64+64-30
=-30;
(4)
(−24)×(−−+)
=9+4-18
=-5. (−24)×(−
3 |
3 | 3
8 |
8 | 8−
1 |
1 | 1
6 |
6 | 6+
3 |
3 | 3
4 |
4 | 4)
=9+4-18
=-5.
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