Đề thi thử Toán 5 kỳ I

7
Phần I. Hãy khoanh vào chữ đặt trớc câu trả lời đúng(2 điểm)
Cõu 1: 25m2 7dm2 = ..m2. S thớch hp vit vo ch chm l:
A. 25,7
B. 2,57
C. 25,07
D. 257
Cõu 2: S ln nht trong cỏc s 5,798 ; 5,897 ; 5,978 ; 5,879 l:
A. 5,978
B. 5,798
C. 5,897

D. 5,879

Cõu 3: Phộp nhõn nhm 34,245 ì 100 cú kt qu l:
A. 342,45

B. 3,4245

C. 34245

D. 3424,5

B. 140

C. 410

D. 104

Cõu 4. : 20% ca 520 l:
A. 401

Phn II.(8 im)
Bi 1: ( 2 im) t tớnh ri tớnh:
a/ 37,35 ì 7,4
b/ 66,645 + 15,08 c/1703 - 22,14

d) 63,536 : 4,18

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Bi 2. Tỡm x (2 im)
a)

425,3 + x = 315,6 ì 12

b) 0,8 ì x = 1,2 : 100

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Cõu 3: ( 1 im) Trong mt lp hc cú 18 hc sinh n v s hc sinh n chim 60 % s
hc sinh ca lp hc. Hi lp hc ú cú bao nhiờu hc sinh nam?
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3
Bi 4 : (1 im ): Mt mnh t hỡnh ch nht cú chiu di 25m, chiu rng 5 chiu di.

Ngi ta nh xõy nh v ch xe tng cng l 112,5m 2. Phn cũn li dựng lm vn.
Tớnh t s phn trm gia din tớch lm vn so vi din tớch ca mnh t ?
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Bài 5: (1 điểm) Tính diện tích tam giác ABM ( Xem hình vẽ)

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2
Bài 6: (1 điểm) Một thửa ruộng HCN có chiều dài bằng 35,5m, chiều rộng bằng 5 chiều dài.

a/ Tính diện tích thửa ruộng đó.
b/ Biết rằng, cứ 10m2 người ta thu hoạch được 5kg thóc. Hỏi trên cả thửa ruộng người ta
thu hoạch được bao nhiêu ki-lô-gam thóc?
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