=(54+45)+99×( 100- 1)
= 100+99× 100-99
= 100×(99+ 1)-99
= 100× 100-99
= 10000-99
=990 1
Solution: (144+96)×(44- 18)
=240×26
=240×(20+6)
=240×20+240×6
=4800+ 1440
=6240
Solution: [(36- 12)×8]÷ 16.
=24×(8÷ 16)
=24×( 1/2)
= 12
Solution: 67×9+99×3
=67×9+9×33
=9×(67+33)
=9× 100
=900
Solution: 345÷ 15+38× 106
=23+4028
=405 1
Solution: (632×5+632×2+632)× 125.
=632×(5+2+ 1)× 125
=632×(8× 125)
=632× 1000
=632000
Solution: suppose that each basket of apples weighs x kilograms.
∴3x=7(x-20)
4x= 140
x=35
A: It turns out that each basket of apples weighs 35 kilograms.