Đề ôn HSG lớp 3
Chia sẻ bởi Lê Minh Đức |
Ngày 09/10/2018 |
36
Chia sẻ tài liệu: Đề ôn HSG lớp 3 thuộc Toán học 3
Nội dung tài liệu:
Caõu 1: Khoỏi lụựp Boỏn coự 250 hoùc sinh, khoỏi lụựp Ba coự nhieàu hụn khoỏi lụựp Boỏn laứ 47 hoùc sinh. Soỏ hoùc sinh khoỏi lụựp Ba laứ:
A. 720 hoùc sinh B. 203 hoùc sinh C. 290 hoùc sinh D. 279 hoùc sinh
Caõu 2: ẹuựng ghi ẹ, sai ghi S vaứo oõ troỏng:
Baùn aờn saựng luực maỏy giụứ?
6 giụứ (
18 giụứ (
19 giụứ (
7 giụứ (
Caõu 3: Trong hỡnh beõn:
Coự bao nhieõu hỡnh tam giaực? A
A. 4 hỡnh C. 6 hỡnh B
B. 5 hỡnh D. 7 hỡnh H
Coự bao nhieõu hỡnh tửự giaực?
A. 2 hỡnh C. 4 hỡnh D E C
B. 3 hỡnh D. 5 hỡnh
Caõu 4: Coự 5 con hoồ vaứ 9 con vũt. Soỏ chaõn coự taỏt caỷ laứ:
A. 45 chaõn B. 14 chaõn C. 29 chaõn D. 38 chaõn
Caõu 5: Tuoồi boỏ hụn tuoồi con laứ 30 tuoồi. Hoỷi sau 20 naờm tuoồi boỏ hụn tuoồi con laứ:
A. 10 tuoồi B. 20 tuoồi C. 30 tuoồi D. 50 tuoồi
Caõu 6: Moọt cuỷa haứng buoồi saựng baựn ủửụùc 543 lớt nửụực maộm, buoồi chieàu baựn ủửụùc ớt hụn buoồi saựng 212 lớt. Soỏ lớt nửụực maộm caỷ hai buoồi baựn ủửụùc laứ:
A. 755 lớt B. 874 lớt C. 331 lớt D. 967 lớt
Bài 1: Tính nhanh
a- 328 : 4 + 272 :4 + 200 : 4
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b- 72 - 8 x 9 : (20 + 21 + 22 + 23 + 24 + 25) ............................................................................................................................................................................................................................................................................
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c- (2 + 4 + 6 + 8 + 10) x (72 – 8 x 8 – 8)
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Bài 2: Tìm X ?
a.12 : X > 6 : 2
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b. X : 7 < 42 : 7
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c. 1451 < x : 6 < 1453
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Bài 3: Mẹ hơn con 24 tuổi. Biết rằng 5 năm sau thì tuổi mẹ gấp 4 lần tuổi con. Hãy tính tuổi hiện nay của mỗi người?
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Bài 4: Tìm 1 số, biết rằng nếu đem số đó chia cho 8 thì được thương bằng số dư, đồng thời số dư là số chẵn lớn nhất có thể có?
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Bài 6: Tìm 1 số, biết rằng nếu ta viết thêm chữ số 9 vào bên phải số đó thì được số mới lớn hơn số trước 3298
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A. 720 hoùc sinh B. 203 hoùc sinh C. 290 hoùc sinh D. 279 hoùc sinh
Caõu 2: ẹuựng ghi ẹ, sai ghi S vaứo oõ troỏng:
Baùn aờn saựng luực maỏy giụứ?
6 giụứ (
18 giụứ (
19 giụứ (
7 giụứ (
Caõu 3: Trong hỡnh beõn:
Coự bao nhieõu hỡnh tam giaực? A
A. 4 hỡnh C. 6 hỡnh B
B. 5 hỡnh D. 7 hỡnh H
Coự bao nhieõu hỡnh tửự giaực?
A. 2 hỡnh C. 4 hỡnh D E C
B. 3 hỡnh D. 5 hỡnh
Caõu 4: Coự 5 con hoồ vaứ 9 con vũt. Soỏ chaõn coự taỏt caỷ laứ:
A. 45 chaõn B. 14 chaõn C. 29 chaõn D. 38 chaõn
Caõu 5: Tuoồi boỏ hụn tuoồi con laứ 30 tuoồi. Hoỷi sau 20 naờm tuoồi boỏ hụn tuoồi con laứ:
A. 10 tuoồi B. 20 tuoồi C. 30 tuoồi D. 50 tuoồi
Caõu 6: Moọt cuỷa haứng buoồi saựng baựn ủửụùc 543 lớt nửụực maộm, buoồi chieàu baựn ủửụùc ớt hụn buoồi saựng 212 lớt. Soỏ lớt nửụực maộm caỷ hai buoồi baựn ủửụùc laứ:
A. 755 lớt B. 874 lớt C. 331 lớt D. 967 lớt
Bài 1: Tính nhanh
a- 328 : 4 + 272 :4 + 200 : 4
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b- 72 - 8 x 9 : (20 + 21 + 22 + 23 + 24 + 25) ............................................................................................................................................................................................................................................................................
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c- (2 + 4 + 6 + 8 + 10) x (72 – 8 x 8 – 8)
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Bài 2: Tìm X ?
a.12 : X > 6 : 2
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b. X : 7 < 42 : 7
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c. 1451 < x : 6 < 1453
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Bài 3: Mẹ hơn con 24 tuổi. Biết rằng 5 năm sau thì tuổi mẹ gấp 4 lần tuổi con. Hãy tính tuổi hiện nay của mỗi người?
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Bài 4: Tìm 1 số, biết rằng nếu đem số đó chia cho 8 thì được thương bằng số dư, đồng thời số dư là số chẵn lớn nhất có thể có?
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Bài 6: Tìm 1 số, biết rằng nếu ta viết thêm chữ số 9 vào bên phải số đó thì được số mới lớn hơn số trước 3298
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