Colección de citas famosas - Colección de poesías - Cálculos sencillos para sumar y restar decimales
Cálculos sencillos para sumar y restar decimales
1.25×(8+10)
=1.25×8+1.25×10
=112.5
= 22,5
2, 1,24+0,78+8,76
=(1,24+8,76)+0,78
=10,78
=10,78
3.1/2-(4/5-1/2)
=1/2+1/2-4/5
=1 -4 /5
=1/5
4, 4800÷25÷4
=4800÷(25x4)
= 4800÷ 100
=4800÷100
=48
5, 2/5-(3/8-3/5)
=2/5+3/5-3/8
=1-3/8
=5/8
6, 3/4 -( 3/7-1/4)
=3/4+1/4-3/7
=1-3/7
= 4/ 7
7, 3.2x0.125x2.5
=0.125x8x(0.4x2.5)
=1x1
=1
8, 0,4×125×25×0,8
=(0,4×25)×(125×0,8)
=10×100
p>=1000
9, 1.25×(8+10)
=1.25×8+1.25×10
=112.5
=22.5
10, 9123-(123+8.8)
=9123-123-8.8
=9000-8.8
=8991.2