四年级口算1000题(17)
时间:2025-07-12
时间:2025-07-12
54+87+13= 39+144+61= 567+299= 327-198= 27×4×5= 18×35= 32×25= 15×28×2= 25 -15 -80 = 26 -6 -64 = 27 + 3 -48 = 28 + 12 -32 29 + 21 -16 = 30 + 30 + 0 = 31 + 39 + 16 = 32 + 48 + 32 = 33 + 57 + 48 = 34 + 66 + 64 = 35 + 75 + 80 = 36 + 84 + 96 = 37 + 93 + 112= 38 + 102 + 128 =
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