Họ và tên: ................................................ Lớp: ....................................................... Điểm số: KIỂM TRA 45 PHÚT ĐẠI SỐ LỚP 7 CHƯƠNG 1 – Đề số 1 Đọc kỹ câu hỏi và thực hiện bài làm ngay trên tờ giấy này ( Không sử dụng tài liệu ) Câu 1 (5 điểm) : Thực hiện phép tính a) −4 5 : 6 5 + −2 3 ; b) 5 1 2 . 2 11 + 0,5 . 5 2 ; c) | −3 4 + 1 2 | - ( 5 4 : 1 2 ) ; d) 22,5 : 120 + 1,5 : |−8| Câu 2 (4 điểm) : Tìm x, biết: a) 7 2 – x = 0,75 ; b) 2|𝑥 − 1 3 | + 1 5 = 1 ; c) ( 2 3 − 𝑥 )3 - 1 125 = 0 Câu 3 (1 điểm): So sánh ( 1 5 )45 và ( −1 2 )60 ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... ......................................................................................................................................................................... .........................................................................................................................................................................
Tài liệu đính kèm: