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標題:

數學問題15題(10分) 5天額度

發問:

1.94+51×5 2.21+34-26 3.201÷31 4.7456+98265-95222 5.4625+1321-2666 6.97322-54101×5 7.24680+13579-369 8.9956÷661 9.234÷16×3 10.222+555-777×99999 11.431+2225-66×9 12.9978+12345-21000 13.934×31 14.23+896÷95-7×10 15.93+226×10÷55

最佳解答:

1) 94 + 51 x 5 = 94 + 255 = 349 2) 21 + 34 - 26 = 55 - 26 = 29 3) 201 ÷ 31 = 201/31 or 6 15/31 4) 7456 + 98265 - 95222 = 105721 - 95222 = 10499 5) 4625 + 1321 - 2666 = 5946 - 2666 = 3280 6) 97322 - 54101 x 5 = 97322 - 270505 = -173183 7) 24680 + 13579 - 369 = 38259 - 369 = 37890 8) 9956 ÷ 661 = 9956/661 or 15 41/661 9) 234 ÷ 16 x 3 = (234 x 3)/16 = 351/8 or 43 7/8 10) 222 + 555 - 777 x 99999 = 222 + 555 - 77699223 = 777 - 77699223 = -77698446 11) 431 + 2225 - 66 x 9 = 431 + 2225 - 594 = 2656 - 594 = 2062 12) 9978 + 12345 - 21000 = 22323 - 21000 = 1323 13) 934 x 31 = 28954 14) 23 + 896 ÷ 95 - 7 x 10 = 23 + 896/95 - 7 x 10 = 23 + 896/95 - 70 = (23 x 95)/95 + 896/95 - (70 x 95)/95 = 2185/95 + 896/95 - 6650/95 = 3081/95 - 6650/95 = -3569/95 or -37 54/95 15) 93 + 226 x 10 ÷ 55 = 93 + 2260 ÷ 55 = 93 + 2260/55 = 93 + 452/11 = (93 x 11)/11 + 452/11 = 1023/11 + 452/11 = 1475/11 or 134 1/11

其他解答:

1.349 2.29 3.201/31=6又15/31 4.10499 5.3280 6.-173183 7.37890 8.15又41/661 9.43.875 10.-77698446 11.2062 12.1323 13.28954 14.-37又54/95 15.134又1/11B5117735D6B60D95