小学三年级数学算数计算练习题8(含加减乘除+答案)

小学三年级数学算数计算练习题1.465 x 2 = 532 + 449 = 609 + 34 = 509 x 9 = 988 x 10 = 509 - 361 = 56 x 2 = 336 ÷ 4 =