精品文档 四年级数学简便计算题及答案 1)125 ×(17 × 8)× 4 2)375 × 480 + 6250 × 48 3)25 × 16 ×125 4)13 × 99 5)75000 ÷ 125 ÷ 15 6)7900 ÷ 4 ÷ 25 7)150 × 40 ÷ 50 9)210 ÷ 42 × 6 11)67 × 21 +18 × 21 + 85 × 79 13)222222 × 999999 15)56000 ÷ (14000 ÷ 16) 17)34 × 3535 -35 × 3434 19)345345 ÷ 15015 21)75 × 45 + 17 × 25 23)(48 × 75 ×81)÷(24 × 25 × 27) 精品文档 8)5600 ÷(25 × 7) 10)39600 ÷ 25 12)321 × 81 + 321 × 19 14)333333 × 333333 16)654321 × 909090 +654321 × 90909 18)27000 ÷ 125 20)347 + 358 + 352 + 349 22)599996 + 49997 + 3998 + 407 + 89 精品文档 四年级数学简便计算题及答案: 1)125 ×(17 × 8)× 4 2)375 × 480 + 6250 × 48 = 125×8×4×17 =480×(375+625) =1000×68 =480000 =68000 3)25 × 16 ×125 4)13 × 99 =25×2×8×125 =13×(100-1) =50000 =1300-13 5)75000 ÷ 125 ÷ 15 =75×1000÷125÷15 =75÷15×1000÷125 =5×8 =40 7)150 × 40 ÷ 50 =150÷50×40 =3×40 =120 9)210 ÷ 42 × 6 =210÷7÷6×6 =30 11)67 × 21 +18 × 21 + 85 × 79 =21×(67+18)+85×79 =21×85+85×79 =85×(21+79) =8500 13)222222 × 999999 =222222×(1000000-1) =222222000000-222222 =222221777778 15)56000 ÷ (14000 ÷ 16) =56000÷14000×16 =4×16 =64 精品文档 =1287 6)7900 ÷ 4 ÷ 25 =7900÷(4×25) =79 8)5600 ÷(25 × 7) =56×100÷25÷7 =56÷7×100÷25 =32 10)39600 ÷ 25 =396×100÷25 =396×4 =1584 12)321 × 81 + 321 × 19 =321×(81+19) =32100 14)333333 × 333333 =111111×999999 =111111×(1000000-1) =111111000000-111111 =111110888889 16)654321 × 909090 +654321×90909 =654321×999999 =654321×(100000-1) =654321000000-654321 =654320345679 精品文档 17)34 × 3535 -35 × 3434 18)27000 ÷ 125 =34×35×101-35×34×101 =27×1000÷125 =0 =27×8 =216 19)345345 ÷ 15015 20)347 + 358 + 352 + 349 =345×1001÷(15×1001) =350×4-3+8+2-1 =345÷15×1001÷1001 =1400+6 =23 =1406 21)75 × 45 + 17 × 25 =25×3×45+17×25 =25×(135+17) =25×152 =25×4×38 =3800 23)(48 × 75 ×81)÷(24 × 25 × 27) =48 × 75 ×81÷24÷25÷27 =48÷24×75÷25×81÷27 =2×3×3 =18 精品文档 22) 599996 + 49997 + 3998 + 407 + 89 =600000+50000+4000-4-3-2+407+89 =65400+487 =65887 本文来源:https://www.wddqw.com/doc/76280a91d7bbfd0a79563c1ec5da50e2534dd110.html