(1)432×99﹣568(2)14÷4﹣(3+5÷9)(3)51×68×78÷(17×34×13)(4)1×(2﹣0.75)+15÷
(1)432×99﹣568 | (2)14 ÷4﹣(3+5÷9) |
(3)51×68×78÷(17×34×13) | (4)1 ×(2 ﹣0.75)+15 ÷ |
(1)432×99﹣568 | (2)14 ÷4﹣(3+5÷9) = ﹣(3+ ) = ﹣ =0 |
(3)51×68×78÷(17×34×13) =51×68×78÷17÷34÷13 =(51÷17)×(68÷34)×(78÷13) =3×2×6 =36 | (4)1 ×(2 ﹣0.75)+15 ÷ = ( ﹣ )+ = × + =( + )× = = |
(1)432×99﹣568
=432×(100﹣1)﹣568
=432×100﹣432﹣568
=43200﹣(432+568)
=43200﹣1000
=42200
= ﹣(3+ )
= ﹣
=0
=51×68×78÷17÷34÷13
=(51÷17)×(68÷34)×(78÷13)
=3×2×6
=36
= ( ﹣ )+
= × +
=( + )×
=
=
(1)432×99﹣568
=432×(100﹣1)﹣568
=432×100﹣432﹣568
=43200﹣(432+568)
=43200﹣1000
=42200
= ﹣(3+ )
= ﹣
=0
(1)432×99﹣568
=432×(100﹣1)﹣568
=432×100﹣432﹣568
=43200﹣(432+568)
=43200﹣1000
=42200
(1)432×99﹣568
=432×(100﹣1)﹣568
=432×100﹣432﹣568
=43200﹣(432+568)
=43200﹣1000
=42200
=432×(100﹣1)﹣568
=432×100﹣432﹣568
=43200﹣(432+568)
=43200﹣1000
=42200
= ﹣(3+ )
= ﹣
=0
= ﹣(3+ )
= ﹣
=0
=51×68×78÷17÷34÷13
=(51÷17)×(68÷34)×(78÷13)
=3×2×6
=36
= ( ﹣ )+
= × +
=( + )×
=
=
=51×68×78÷17÷34÷13
=(51÷17)×(68÷34)×(78÷13)
=3×2×6
=36
=51×68×78÷17÷34÷13
=(51÷17)×(68÷34)×(78÷13)
=3×2×6
=36
= ( ﹣ )+
= × +
=( + )×
=
=
= ( ﹣ )+
= × +
=( + )×
=
=
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