100 cálculos orales de multiplicación y división decimal con respuestas
0.5 x) x=9.8÷2 2(X X 0.5)=9.8 25000 x=6x 3200=450 5X 81.6 x 5.6=9.4 52-x=15 91÷x=1.3 -4x 7x 5.3= 7.4 3x÷5=4.8 30÷x 25=85 1.4×8-2x=6 6x-12.8×3=0.06 410-3x=170 3(x 0.5)=21 0.5x 8=43 6x- 3x=18 1.5x 18=3x 5×3-x÷2=8 0.273÷x=0.35 1.8x=0.972 x÷0.756=90 9x-40=5 x÷5 9=21 48-27 5x=31 10.5 x 21=56 x 2x 18=78 (200-x)÷5=30 (x-140)÷70=4 0,1(x 6)=3,3×0,4 4(x-5,6)=1,6 7(6,5 x)=87,5 (27,5-3,5) ÷x=4 x 19,8=25,8 5,6x=33,6 9,8-x=3,8 75,6÷x=12,6 5x 12,5=32,3 5(x 8)=102 x 3x 10=70 3(x 3)=50 -x 3 5x 15 =60 3,5-5x=2 0,3×7 4x=12,5 x÷1,5-1,25=0,75 4x-1,3×6=2,6 20-9x=1,2×6,25 6x 12,8=15,8 150×2 3x=690 2x -20=4 3x 6=18 2(2.8 x)=10.4 (x-3)÷2=7.5 13.2x 9x=33.3 3x=x 100 x 4.8=7.2 6x 18=48 3(x 2.1)=10.5 12x- 9x=8.7 13( x 5)=169 2x-97=34,2 3,4x-48=26,8 42x 25x=134 1,5(x 1,6)=3,6 2(x-3)=5,8 65x 7=42 9x 4×2,5=91 4,2 -2X=18 3X 0.7=5 3.5×2= 4.2 x 26×1.5= 2x 10 0.5×16―16×0.2=4x 13 9.25-X=0.403 16.9÷X=0. 5x=80 1.8 6x=54 6.7x -60.3=6.7 9 +4x =40 2x 8=16 x/5=10 x 7x=8 9x-3x=6 6x-8=4 5x x=9 x-8= 6x 4 /5x=20 2x-6=12 7x 7=14 6x-6=0 5x 6=11 2x-8=10 1/2x-8=4 x-5/6=7 3x 7=28 3x-7 =26 9x-x=16 24x x=50 6/7x-8=4 3x-8=30 6x 6=12 3x-3=1 5x-3x=4 2x 16=19 5x 8=19 14-6x=8 15 6x =27 5-8x=
4 7x 8=15 9-2x=1 4 5x=9 10-x=8 8x 9=17 9 6x=14 x 9x=4 7 2x 9=17 8-4x=6 6x-7=12 7x-9= 8 x-56=1 8-7x=1 x-30=12 6x-21=21 6x-3=6 9x=18 4x-18=13 5x 9=11 6-2x=11 x 4 8=23 7x- 12=8 0,5=2,6 3-5x=80 1,8-6x=54 6,7x-60,3=6,7 9 -4x=40 0,2x-0,4+0,5=3,7 9,4x-0,4x=16,2 12-4x=20 1/3x+5 /6x= 1.4 12x+34x=1 18x-14x=12 23 ?