题目内容
写出用科学记数法表示的数的原数:
(1)5.03×106=______;
(2)-3.15×10-4=______;
(3)1.09×10-5=______;
(4)-4.23×10-3=______.
(1)5.03×106=______;
(2)-3.15×10-4=______;
(3)1.09×10-5=______;
(4)-4.23×10-3=______.
(1)5.03×106=5030000;
(2)-3.15×10-4=-0.000315;
(3)1.09×10-5=0.0000109;
(4)-4.23×10-3=-0.00423.
故答案为:5030000;-0.000315;0.0000109;-0.00423.
(2)-3.15×10-4=-0.000315;
(3)1.09×10-5=0.0000109;
(4)-4.23×10-3=-0.00423.
故答案为:5030000;-0.000315;0.0000109;-0.00423.
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