资源描述
一、计算
3× ×3 2× 5× 6× ×2 3×
×12 10× ×16 7× 4× 21× 12×1
12× 12× 1×3 ×3 ×3 5×2 ×2
×2 5× ×6 100× ×4 21× ×4
× × × × × × ×
× × × × × × ×
× 75× ×140 × ×9 × ×
× × × ×2 × × ×
× 2× 7× ×5 ÷2 ÷3 ÷6
÷12 ÷5 ÷9 ÷10 ÷6 2÷ 2÷
2÷ 8÷ ÷3 6÷ ÷ ÷ ÷4
÷ ÷ ÷7 ÷ 6÷ 6÷ 6÷1
6÷ 6÷ 8× ÷4 ÷ ÷4 ÷
× ÷ ÷ 7÷ + ÷2 100×
× 12÷ ÷ × ÷ ÷
- 24× 1÷ 5÷2 ×7 ÷12 × 100×
28× ÷ × ×18 × 1÷ -
二、脱式计算
12×× ×÷ 12÷÷ ÷× ×× 2÷(×)
×(1÷) 12÷(÷) ×6× ×× ×17+×17 ×(×)
(+)×17 +3× 18×(3-) ÷3- 4÷÷ ×+×
+÷ ×× 9×+÷9 12×(+-) ×× ×÷
(1+)×10 36×+36× 4÷- 98÷(÷) 21×(1+) 12×(÷)
×24+24× ×÷ +÷ - × (- )× 22÷(+)
÷3- 1÷(÷) +- 35÷(÷) ×(- ) ××39
×5 +×5 - × ×+
三、解方程
3x= x=10 x=25 x= x=6 x=7 x=4
x= 8x= x =6 x =1 x= x=54 x=35
x =16 1.5x =28.5 8x=42 4+x=102 x-x= x-0.8x=22 20% x = 30
x+x=42 x-= x+=6 6 x+x=9 2x -x= x+=12
x-x =15 x = x-x =120 x ÷ = 5 + x =13
四、直接写得数
3×= ×3= 2×= 5×= 6×= ×2= 3×= ×12=
10×= ×16= 7×= 4×= 21×= 12×1= 12×= 12×=
1×3= ×3= ×3= 5×2= ×2= ×2= 5×= ×6=
100×= ×4= 21×= ×4= ×= ×= ×= ×=
×= ×= ×= ×= ×= ×= ×= ×=
×= ×= ×= 75×= ×140= ×= ×9= ×=
×= ×= ×= ×= ×2= ×= ×= ×=
×= 2×= 7×= ×5= ÷2= ÷3= ÷6= ÷12=
÷5= ÷9= ÷10= ÷6= 2÷= 2÷= 2÷= 8÷=
÷3= 6÷= ÷= ÷= ÷4= ÷= ÷= ÷7=
÷= 6÷= 6÷= 6÷1= 6÷= 6÷= 8×= ÷4=
÷= ÷4= ÷= ×= ÷= ÷= 7÷= +=
÷2= 100×= ×= 12÷= ÷= ×= ÷= ÷=
-= 24×= 1÷= 5÷2= ×7= ÷12= ×= 28×
÷= ×= ×18= ×= 1÷= -= 100×=
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