问题 解答题
计算下面各题能简算的要简算.
672-36-6426×76+26×2498+265+202
99×2632×125×25576-(176+280)
32×101-3289×99+891050÷15÷7.
答案

(1)672-36-64

=672-(36+64)

=672-100

=572

(2)26×76+26×24

=26×(76+24)

=26×100

=2600

(3)98+265+202

=98+202+265

=300+265

=565

(4)99×26

=(100-1)×26

=100×26-1×26

=2600-26

=2574

(5)32×125×25

=4×8×125×25

=(4×25)×(8×125)

=100×1000

=100000

(6)576-(176+280)

=576-176-280

=400-280

=120

(7)32×101-32

=32×(101-1)

=32×100

=3200

(8)89×99+89

=89×(99+1)

=89×100

=8900

(9)1050÷15÷7

=1050÷(15×7)

=1050÷105

=10

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