(1)969696×999999÷323232÷333333=(2)416×221÷17×34÷208=(3)99000÷25÷4=(4)40÷125×25=
(1)969696×999999÷323232÷333333=(2)416×221÷17×34÷208=(3)99000÷25÷4=(4)40÷125×25=(5)(31...
(1)969696×999999÷323232÷333333=(2)416×221÷17×34÷208=(3)99000÷25÷4=(4)40÷125×25=(5)(31÷9293)×(8÷1192)=(6)1÷(2÷3)÷(3÷4)÷(4?.5)÷(5÷6)=(7)125×5.6=(8)12.5×17×0.56=
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(1)969696×999999÷323232÷333333,
=(969696÷323232)×(999999÷333333),
=3×3,
=9;
(2)416×221÷17×34÷208,
=(416÷208)×211×(34÷17),
=2×211×2,
=844;
(3)99000÷25÷4,
=99000÷(25×4),
=99000÷100,
=990;
(4)40÷
×25,
=40×25×25,
=1000×25,
=25000;
(5)(31÷
)×(8÷1
),
=31×
×8×
,
=248;
(6)1÷(2÷3)÷(3÷4)÷(4÷5)÷(5÷6),
=1÷2×(3÷3)×(4÷4)×(5÷5)×6,
=l÷2×6,
=3;
(7)125×5.6,
=125×(8×0.7),
=125×8×0.7,
=1000×0.7,
=700;
(8)12.5×
×0.56,
=12.5×
×(8×0.07),
=(12.5×8)×(
×0.07),
=100×0.01,
=1.
=(969696÷323232)×(999999÷333333),
=3×3,
=9;
(2)416×221÷17×34÷208,
=(416÷208)×211×(34÷17),
=2×211×2,
=844;
(3)99000÷25÷4,
=99000÷(25×4),
=99000÷100,
=990;
(4)40÷
1 |
25 |
=40×25×25,
=1000×25,
=25000;
(5)(31÷
92 |
93 |
1 |
92 |
=31×
93 |
92 |
92 |
93 |
=248;
(6)1÷(2÷3)÷(3÷4)÷(4÷5)÷(5÷6),
=1÷2×(3÷3)×(4÷4)×(5÷5)×6,
=l÷2×6,
=3;
(7)125×5.6,
=125×(8×0.7),
=125×8×0.7,
=1000×0.7,
=700;
(8)12.5×
1 |
7 |
=12.5×
1 |
7 |
=(12.5×8)×(
1 |
7 |
=100×0.01,
=1.
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