2018年小学三年级口算练习题(四十六)
2018年小学三年级口算练习题(四十六)896-823 = 878-805 = 764-687 = 557-487 = 764-716 =
113-109 = 283-274 = 933-836 = 217-180 = 928-888 =
349-348 = 763-684 = 789-717 = 601-544 = 146-112 =
746-651 = 640-633 = 738-682 = 519-446 = 842-768 =
652+347 = 314+520 = 341-265 = 698-602 = 817-507 =
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