534+262+66+138. 85×(95-1440÷24) 99×165+165. 25×32×125. 8×(125+12) 1428-544-456
534+262+66+138.85×(95-1440÷24)99×165+165.25×32×125.8×(125+12)1428-544-456....
534+262+66+138. 85×(95-1440÷24) 99×165+165. 25×32×125. 8×(125+12) 1428-544-456.
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(1)534+262+66+138,
=(534+66)+(262+138),
=600+400,
=1000;逗尺
(2)85×(95-1440÷24),
=85×(95-60),
=85×35,
=2975;
(3)99×165+165,
=(99+1)×165,
=100×165,
=16500;首和
(4)25×32×125,
=25×4×8×125,
=(25×4)×(8×125),
=100×1000,
=100000;
(山芹高5)8×(125+12),
=8×125+8×12,
=1000+96,
=1096;
(6)1428-544-456,
=1428-(544+456),
=1428-1000,
=428.
=(534+66)+(262+138),
=600+400,
=1000;逗尺
(2)85×(95-1440÷24),
=85×(95-60),
=85×35,
=2975;
(3)99×165+165,
=(99+1)×165,
=100×165,
=16500;首和
(4)25×32×125,
=25×4×8×125,
=(25×4)×(8×125),
=100×1000,
=100000;
(山芹高5)8×(125+12),
=8×125+8×12,
=1000+96,
=1096;
(6)1428-544-456,
=1428-(544+456),
=1428-1000,
=428.
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