小学数学简便运算练习题

(13x8) x125 20x (17x5) 14x20x5 276x38+276x62

102x26 25x (40x32) (5x7) x80 8x14x125x6

16x25x5x4 25x13x4 3x12x5 23x4x5

40x7x3x5 25x6x4x5 3475-1999 2843-598

(8x6) X125 4x8x25x125 36x25 259+468+741+532 3700-2185-815 12x25 125x (8+4) 28x25

(15+25) x2 25x (8+40) 125x24 25x24

16x25x19 32x125 44x250 125x56

20x12x5x3 724-298 25x16 75x25x2x4

345+497 16x (37+12) 48x19+52x19 64x125

25x48 32+144+68 + 56 847-2974x7x25x3 (25+7) x4

60x (15 + 500) 46x18+54x18

248+198 435 + 1999 8x (125 + 9) (400+16) x5 170x4+80x4 103x56

13x68+13x32 (2+4) X15 5x (20+6) 8x23 + 8x27 9x6+4x9 6x29+6x71 5x116+5x84 (125+12) x8

29x317+317x71 99x14 75x99+75 102x36

49x80+80 18x8x125x2 230-216-184 48x125 (25x30) x4 125x (8x6) 25x44 4x20x75x5

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