题目内容
计算.(能简算的要简算)
876+1529+124=
10-(9.62-2.8)=
42.8×4×25=
98÷(
÷
)=
÷3+
×
=
÷[(
+
)×
]=
876+1529+124=
10-(9.62-2.8)=
42.8×4×25=
98÷(
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(1)876+1529+124
=(876+124)+1529,
=1000+1529,
=2529;
(2)10-(9.62-2.8)
=10-6.82,
=3.18;
(3)42.8×4×25
=42.8×(4×25),
=42.8×100,
=4280;
(4)98÷(
÷
)
=98×
÷
,
=28×15,
=420;
(5)
÷3+
×
=
×
+
×
,
=(
+
)×
,
=1×
,
=
;
(6)
÷[(
+
)×
]
=
÷
÷(
+
),
=1÷
,
=
.
=(876+124)+1529,
=1000+1529,
=2529;
(2)10-(9.62-2.8)
=10-6.82,
=3.18;
(3)42.8×4×25
=42.8×(4×25),
=42.8×100,
=4280;
(4)98÷(
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| 15 |
| 2 |
| 7 |
=98×
| 2 |
| 7 |
| 1 |
| 15 |
=28×15,
=420;
(5)
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=
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=(
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=1×
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=
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(6)
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=
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=1÷
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=
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| 9 |
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