Mathematics
Junior High
Solved

このような解説をもっと詳しくお願いします!!

I 1×2 2×3'3×4 4×5 9×9
平 S×9+×9-XZx8,Ix2 I 9×S I 3×4'4×5 I I 1×2 I 2×3 5-4 G- 4-3 3-2 5×4 2-1 4×3 3×2 ×1 (3-)(-)()(モ-リ- 9 I 9 9
計算

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