Chemistry
Senior High
どうとけば良いのですか？？
(10) (1.37×10³)+(2.1×10³3) = 3.5 × 10³
3
(11) (2.85×10²)+(6.5×10³) = 6.8x (0³
(12) (8.7×10²4)÷(1.2×10²¹1) = 7.3 x 10³
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