85个127连加,和是多少?
计算 (1)10÷3.14﹣6.86÷3.14(2)+9+99+999.
简算.×3+×5+×10 999×7+111×7(+++)×2002.
简算 ①9﹣(3+0.4) ②1.8×+2.2×25% ③×[0.75﹣(﹣)].
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=