1.3/7 × 49/9 - 4/3 2.8/9 × 15/36 + 1/27 3.12× 5/6 – 2/9 ×3 4.8× 5/4 + 1/4 5.6÷ 3/8 – 3/8 ÷66.4/7 × 5/9 + 3/7 × 5/9 7.5/2 -( 3/2 + 4/5 )8.7/8 + ( 1/8 ... 1.3/7 × 49/9 - 4/3 2.8/9 × 15/36 + 1/27 3.12× 5/6 – 2/9 ×3 4.8× 5/4 + 1/4 5.6÷ 3/8 – 3/8 ÷66.4/7 × 5/9 + 3/7 × 5/9 7.5/2 -( 3/2 + 4/5 )8.7/8 + ( 1/8 ... × 49/9 - 4/3 2.8/9 × 15/36 + 1/27 3.12× 5/6 – 2/9 ×3 4.8× 5/4 + 1/4 5.6÷ 3/8 – 3/8 ÷66.4/7 × 5/9 + 3/7 × 5/9 7.5/2 -( 3/2 + 4/5 )8.7/8 + ( 1/...
20以内一分钟8道合格,100以内一分钟4道合格.
74×12+26×12 295+198 810÷27 2.5+3.2 315-198 213÷3 9.8-4.8 99+232 76+24 1.29-0.18 543-306 67-48 2.37+0.9 227+173 50×60 9+0.1 175-35 125÷5 8-0.72 436+208 112... 74×12+26×12 295+198 810÷27 2.5+3.2 315-198 213÷3 9.8-4.8 99+232 76+24 1.29-0.18 543-306 67-48 2.37+0.9 227+173 50×60 9+0.1 175-35 125÷5 8-0.72 436+208 112... 295+198 810÷27 2.5+3.2 315-198 213÷3 9.8-4.8 99+232 76+24 1.29-0.18 543-306 67-48 2.37+0.9 227+173 50×60 9+0.1 175-35 125÷5 8-0.72 436+208 112+88 0....
1.3/7 × 49/9 - 4/3 2.8/9 × 15/36 + 1/27 3.12× 5/6 – 2/9 ×3 4.8× 5/4 + 1/4 5.6÷ 3/8 – 3/8 ÷6 6.4/7 × 5/9 + 3/7 × 5/9 7.5/2 -( 3/2 + 4/5 ) 8.7/8 + ( 1/... 1.3/7 × 49/9 - 4/3 2.8/9 × 15/36 + 1/27 3.12× 5/6 – 2/9 ×3 4.8× 5/4 + 1/4 5.6÷ 3/8 – 3/8 ÷6 6.4/7 × 5/9 + 3/7 × 5/9 7.5/2 -( 3/2 + 4/5 ) 8.7/8 + ( 1/... × 49/9 - 4/3 2.8/9 × 15/36 + 1/27 3.12× 5/6 – 2/9 ×3 4.8× 5/4 + 1/4 5.6÷ 3/8 – 3/8 ÷6 6.4/7 × 5/9 + 3/7 × 5/9 7.5/2 -( 3/2 + 4/5 ) 8.7/8 + ( ...
1.巧算:(1+99)+(2+98)+(3+97).+(.48+52)+(49+51)共有49个100,还有一个50,一个100,所以和是5050.或者1+2+3+4+...+100=(1+100)+(2+99)+(3+98)+...+(49+52)+(50+51) 共有50个... 1.巧算:(1+99)+(2+98)+(3+97).+(.48+52)+(49+51)共有49个100,还有一个50,一个100,所以和是5050.或者1+2+3+4+...+100=(1+100)+(2+99)+(3+98)+...+(49+52)+(50+51) 共有50个... 共有50个括号=(1+100)*50=50502.公式:首项加末项乘以项数除以2在这道题里面首项为1 末项为100 项数是100所以 为 (1+100)*100/2=5050
0.35×1.6+0.35×3.4 0.25×8.6×4 6.72-3.28-1.72 0.45+6.37+4.55 5.4+6.9×3-(25-2.5)2×41846-620-380 4.8×46+4.8×54 0.8+0.8×2.5 1.25×3.6×8×2.5-12.5×2.4 28×... 0.35×1.6+0.35×3.4 0.25×8.6×4 6.72-3.28-1.72 0.45+6.37+4.55 5.4+6.9×3-(25-2.5)2×41846-620-380 4.8×46+4.8×54 0.8+0.8×2.5 1.25×3.6×8×2.5-12.5×2.4 28×... 0.25×8.6×4 6.72-3.28-1.72 0.45+6.37+4.55 5.4+6.9×3-(25-2.5)2×41846-620-380 4.8×46+4.8×54 0.8+0.8×2.5 1.25×3.6×8×2.5-12.5×2.4 28×12.5-12.5×2...
用等差数列吧!(首项+末项)×项数÷2,运用到这题就是(1+100)×100÷2=5050所有公差一样的,都可以用.例如:1+3+5+···+101,首先求出项数:(末项-首项)÷公差+1→(101-1)÷2+1... (首项+末项)×项数÷2,运用到这题就是(1+100)×100÷2=5050所有公差一样的,都可以用.例如:1+3+5+···+101,首先求出项数:(末项-首项)÷公差+1→(101-1)÷2+1=51(项)然后用...
6x + 3/10 + 10 × 60.18 - 18.1 = 644 6x + 3/10 + 10 × 60.28 - 28.1 = 635 6x + 3/10 + 10 × 60.38 - 38.1 = 626 6x + 3/10 + 10 × 60.48 - 48.1 = 617 6x + 3/10 + ... 6x + 3/10 + 10 × 60.18 - 18.1 = 644 6x + 3/10 + 10 × 60.28 - 28.1 = 635 6x + 3/10 + 10 × 60.38 - 38.1 = 626 6x + 3/10 + 10 × 60.48 - 48.1 = 617 6x + 3/10 + ... 3/10 + 10 × 60.18 - 18.1 = 644 6x + 3/10 + 10 × 60.28 - 28.1 = 635 6x + 3/10 + 10 × 60.38 - 38.1 = 626 6x + 3/10 + 10 × 60.48 - 48.1 = 617 6x + 3/10...
2、一个数的1.5倍是3.75,这个数的2.4倍是多少?3 、3.7乘6.04与0.17的差,积是多少?五.应用题1、文具店批发价购进每块0.3元的橡皮50块,然后按0.5元的零售价出售,全部售完可获... 3、3.7乘6.04与0.17的差,积是多少?五.应用题1、文具店批发价购进每块0.3元的橡皮50块,然后按0.5元的零售价出售,全部售完可获毛利多少元?2、一本的售价是8.8元,李老师付出50... 五.应用题1、文具店批发价购进每块0.3元的橡皮50块,然后按0.5元的零售价出售,全部售完可获毛利多少元?2、一本的售价是8.8元,李老师付出50元,最多能买多少本?找回多...
3.(23/4-3/4)*(3*6+2) 4.3/7 × 49/9 - 4/3 5.8/9 × 15/36 + 1/27 6.12× 5/6 – 2/9 ×3 7.8× 5/4 + 1/4 8.6÷ 3/8 – 3/8 ÷6 9.4/7 × 5/9 + 3/7 × 5/9 10.5/2 -( 3/... 3.(23/4-3/4)*(3*6+2) 4.3/7 × 49/9 - 4/3 5.8/9 × 15/36 + 1/27 6.12× 5/6 – 2/9 ×3 7.8× 5/4 + 1/4 8.6÷ 3/8 – 3/8 ÷6 9.4/7 × 5/9 + 3/7 × 5/9 10.5/2 -( 3/... 4.3/7 × 49/9 - 4/3 5.8/9 × 15/36 + 1/27 6.12× 5/6 – 2/9 ×3 7.8× 5/4 + 1/4 8.6÷ 3/8 – 3/8 ÷6 9.4/7 × 5/9 + 3/7 × 5/9 10.5/2 -( 3/2 + 4/5 ) 11....
一年级100以内加减法混合题
1008748 663947 251837 1005545 752547 551948 7269132 481924 557648 661189 15269 43218 131926 221831 64557 100以内混合加减法 计算题 178509272230 335640447920 5173156755014 749
小学一年级20道加减混合的计算题
1228 2739583559 85236572543 561232528642 394159201999 868487564511 4347742945 65759179 26856745226 585246