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计算.(1)0.75×3.66-34×2.66;(2)(-12)2001+(12)2000;(3)2×562+8×56×22+2×442.

题目详情
计算.
(1)0.75×3.66-
3
4
×2.66;
(2)(-
1
2
2001+(
1
2
2000
(3)2×562+8×56×22+2×442

3
4
×2.66;
(2)(-
1
2
2001+(
1
2
2000
(3)2×562+8×56×22+2×442
3
4
3344
1
2
2001+(
1
2
2000
(3)2×562+8×56×22+2×442
1
2
11222001
1
2
2000
(3)2×562+8×56×22+2×442
1
2
11222000
22
▼优质解答
答案和解析
(1)原式=0.75×(3.66-2.66)
=0.75×1
=0.75;
(2)原式=-
1
2
×(
1
2
2000+(
1
2
2000
=(-
1
2
+1)×(
1
2
2000
=(
1
2
2001
(3)原式=2×(562+4×56×22+442
=2×(56+44)2
=2×10000
=20000.
1
2
111222×(
1
2
2000+(
1
2
2000
=(-
1
2
+1)×(
1
2
2000
=(
1
2
2001
(3)原式=2×(562+4×56×22+442
=2×(56+44)2
=2×10000
=20000.
1
2
111222)20002000+(
1
2
2000
=(-
1
2
+1)×(
1
2
2000
=(
1
2
2001
(3)原式=2×(562+4×56×22+442
=2×(56+44)2
=2×10000
=20000.
1
2
111222)20002000
=(-
1
2
+1)×(
1
2
2000
=(
1
2
2001
(3)原式=2×(562+4×56×22+442
=2×(56+44)2
=2×10000
=20000.
1
2
111222+1)×(
1
2
2000
=(
1
2
2001
(3)原式=2×(562+4×56×22+442
=2×(56+44)2
=2×10000
=20000.
1
2
111222)20002000
=(
1
2
2001
(3)原式=2×(562+4×56×22+442
=2×(56+44)2
=2×10000
=20000.
1
2
111222)20012001;
(3)原式=2×(5622+4×56×22+4422)
=2×(56+44)22
=2×10000
=20000.