=(0.4×25)×( 125×0.8)
= 10× 100= 1000
1.25×(8+ 10)
= 1.25×8+ 1.25× 10
= 10+ 12.5=22.5
9 123-( 123+8.8)
=9 123- 123-8.8
=9000-8.8
=899 1.2
1.24×8.3+8.3× 1.76
=8.3×( 1.24+ 1.76)
=8.3×3=24.9
9999× 100 1
=9999×( 1000+ 1)
=9999× 1000+9999× 1
= 10008999
14.8×6.3-6.3×6.5+8.3×3.7
=( 14.8-6.5)×6.3+8.3×3.7
=8.3×6.3+8.3×3.7
8.3×(6.3+3.7)
=8.3× 10
=83
1.24+0.78+8.76
=( 1.24+8.76)+0.78
= 10+0.78
= 10.78
933- 157-43
=933-( 157+43)
=933-200
=733
482 1-998
=482 1- 1000+2
=3823
I32× 125×25
=4×8× 125×25
=(4×25)×(8× 125)
= 100× 1000
= 100000
9048÷268
=(2600+2600+2600+ 1248)÷26
=2600÷26+2600÷26+2600÷26+ 1248÷269
= 100+ 100+ 100+48
=348