2x 0,82 = 8,2 3 0,5x = 7 7,8÷x = 2,6 80x÷4 = 12
5-0,9x = 2,75 2x 0,4x = 48 6-2x 6x = 18 35x 13x = 9,6
0,52×5-4x = 0,6 0,7(x 0,9)= 42 1,3x 2,4×3 = 12,4
3.5x = 140 2x 5 = 40 15x 6x = 168
5x 1.5 = 4.5 13.7—x = 5.29 4.2×3—3x = 5.1 (escribe el proceso de inspección).
20.5-4x = 8.1 3.6x÷1.2 = 9.75
18×1.5-1.7x = 13.4 18.5 x-9.9x = 1.721.9 x 1.5 x = 32.1.7.2× 5-8x = 11,24 x 3
(x-0,5)=1,6
3x×2,34 = 4,914 1,44÷x = 0,4
(cálculo oral)< / p>
0.6×1.2= 0.84÷0.6= 4.5×0.1=
15×0.4= 0.1×0.5= 2.8÷7=
100÷0.01= 1.4×3 = 0.72÷8=
6÷0.03= 0.5×0.6= 40×0.9=
4÷0.5= 7×2.1= 8.89 0.1=
24 ×0.25= 0.1÷0.01= 2.4×0.8=
9×0.4= 10×0.01= 30.2-3.02=
4.3-0.25= 1-0.82= 9.6÷ 0.3=
2.6×0.01= 0×25.4= 4.8×0.4=
7.2 2.8=
12×2.5=
2.63 0.37=
0.7×16-16×0.2=
0.96÷0.3=
1.5-4.5=
2.5×0.4
1.4×2.5×4=
8-2.5=
6÷1.2=
9.2÷2.3=
24 ÷4 56÷4=
0.36 0.64=
4÷0.25=
1.8×5=
30× (200 3 )=
8.4÷4.2=
8×1.5=
4.8÷0.3=
2.73 1.5×4=
Calcule los siguientes problemas (simplifique si es posible)
7.05×23.7 7.05×76.3 0.125×3.2×2.5
12 23.1÷0.75)×0.4-5.12 1,6×[ (12-7,2)÷(0,84÷2,1)]
12,81-(1,5 7,81) 8,7×2,6 6,4×8,7 8,7
1025-1125÷4,5×3,6 [ 2 2,53÷ (0,44×1,25)]÷0,66
(16,45-1,82-4,45-2,18)÷1,25
12,25-3,1 0,85-6,17 (1,9-1,9×0,9)÷ (3,8- 2,8)
2,65×1,7 1,35×1,7 630÷[2,98 6,5×(3,2-3,12)]