四年级口算练习(一) 1 ) 2 0 0 ×3 0 = 2 ) 4 2 ×4 = 3 ) 6 3 ×7 = 4 ) 2 3 0 ×2 0 - 4 6 = 5 ) 1 3 0 ×3 = 6 ) 6 0 ×5 0 = 7 ) 3 6 ×2 0 = 8 ) 4 9 0 ÷7 0 + 5 8 = 9 ) 1 5 0 ÷3 = 1 0 ) 2 6 0 ×2 = 1 1 ) 7 5 ×2 6 = 1 2 ) 2 1 ×4 0 - 4 9 = 1 3 ) 3 5 ×2 0 = 1 4 ) 1 5 ×8 0 = 1 5 ) 3 0 0 ×6 = 1 6 ) 1 5 ×8 + 9 7 = 1 7 ) 2 3 ×3 0 = 1 8 ) 5 1 ÷3 = 1 9 ) 2 5 0 ÷5 0 = 2 0 ) 2 1 0 ÷3 0 - 6 9 = 2 1 ) 6 0 ÷6 0 = 2 2 ) 8 0 ÷5 = 2 3 ) 2 4 0 ÷8 0 = 2 4 ) 1 0 0 ÷5 0 - 4 6 = 2 5 ) 1 2 0 0 ÷2 0 = 2 6 ) 2 7 0 ÷9 0 = 2 7 ) 5 0 ÷1 0 = 2 8 ) 3 6 0 ÷4 0 × 8 = 2 9 ) 5 0 0 ÷5 0 = 3 0 ) 2 8 0 ÷7 0 = 3 1 ) 3 4 ×2 = 3 2 ) 1 5 ×50 +5 2 = 3 3 ) 2 1 ×30 = 3 4 ) 1 5 ×63 = 3 5 ) 1 2 0 ÷6 0 = 3 6 ) 2 5 ×4 - 3 4 = 3 7 ) 1 4 ×50 = 3 8 ) 4 8 0 ÷8 0 = 3 9 ) 3 0 ×6 0 = 4 0 ) 1 8 0 ÷6 0 × 6 = 4 1 ) 2 5 ×4 0 = 4 2 ) 1 8 0 0 ÷9 0 = 4 3 ) 5 ×1 7 = 4 4 ) 4 8 ÷3 + 7 2 = 4 5 ) 9 0 ×6 = 4 6 ) 1 4 0 0 ×5 = 4 7 ) 1 2 ×8 = 4 8 ) 9 2 ÷2 - 2 6 = 4 9 ) 1 5 0 ×4 = 5 0 ) 5 6 0 ÷8 0 = 四年级口算练习(二) 1 ) 7 2 ÷2 4 = 2 ) 3 2 0 0 ×2 = 3 ) 2 4 ×2 0 = 4 ) 7 0 ÷1 4 × 5 = 5 ) 2 8 ×3 = 6 )5 6 ×1 3 = 7 ) 6 5 0 ÷5 = 8 ) 9 0 0 ÷6 - 1 2 3 = 9 ) 1 0 ×4 7 = 1 0 ) 9 1 ÷1 3 = 1 1 ) 4 5 0 ÷50 = 1 2 ) 1 2 ×2 0 ÷ 1 0 = 1 3 ) 1 8 ×2 = 1 4 ) 8 4 ÷3 = 1 5 ) 1 9 0 0 ×5 = 1 6 ) 7 2 0 ÷4 - 1 3 5 = 1 7 ) 5 0 ×7 0 = 1 8 ) 4 8 0 ÷8 0 = 1...