PHIẾU HỌC TẬP 1

BÀI 15. QUY TẮC DẤU NGOẶC

Bài 1. Tính nhanh

a)

b)

c)

d)

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Bài 2. Tính nhanh

a)

b)

c)

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Bài 3. Bỏ dấu ngoặc rồi tính

a)

b)

c)

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PHIẾU HỌC TẬP 2

BÀI 15. QUY TẮC DẤU NGOẶC

Bài 1. Tính nhanh

a)

b)

c)

d)

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Bài 2. Thu gọn các tổng sau:

a)

b)

c)

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Bài 3. Thu gọn các tổng sau:

a)

b)

c)

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Bài 4. Cho . Tính giá trị của biểu thức sau

a)

b)

c)

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