BÀI THI S 1:Ố Xóa các ô trong b ng theo th t tăng d nả ứ ự ầ
57371 794 19791 6791 787
754 5756 19792 892 7787
5713 56371 637 8791 5718
19793 5786 8792 786 58741
BÀI THI S 2: ỐHãy đi n s thích h p vào ch .... nhé !ề ố ợ ỗ
Câu 1: Tính giá tr c a bi u th c: 3789 : 3 – n x 356 v i n = 2ị ủ ể ứ ớ
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Câu 2: S g m 36 nghìn, 2 trăm, 6 đn v đc vi t là:........................................................ố ồ ơ ị ượ ế
S g m 6 tri u, 5 trăm và 4 ch c đc vi t làố ồ ệ ụ ượ ế .......................................................
Câu 3: Tính giá tr c a bi u th c: 68 x m + 32 x m v i m = 9ị ủ ể ứ ớ
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Câu 4: Tính giá tr c a bi u th c: 665 x n + 3421 x 2 v i n = 6ị ủ ể ứ ớ
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Câu 5:Giá tr c a y trong bi u th c 65 x y x 5 = 650 ị ủ ể ứ
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Câu 6: Chu vi hình vuông có di n tích làệ 16 cm2 là
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Câu 7: Khi vi t s 2 vào bên trái m t s có 3 ch s thì s m i h n s cũ bao nhiêu đn v ?ế ố ộ ố ữ ố ố ớ ơ ố ơ ị
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Câu 8: Tính di n tích c a hình ch nh t bi t khi tăng chi u r ng 14cm và gi m chi u dài ệ ủ ữ ậ ế ề ộ ả ề
10cm thì hình ch nh t tr thành hình vuông có chu vi 92cm.ữ ậ ở
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Câu 9:Tính di n tích hình ch nh t bi t chu vi hình ch nh t b ng 76cm và chi u dài hình ệ ữ ậ ế ữ ậ ằ ề
ch nh t b ng 30cm.ữ ậ ằ
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Câu 10:M t hình ch nh t có chi u dài 24cm, chu vi hình ch nh t b ng 64cm. Tính di n ộ ữ ậ ề ữ ậ ằ ệ
tích hình vuông có c nh b ng chi u r ng hình ch nh t.ạ ằ ề ộ ữ ậ
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Câu 11:Tính giá tr bi u th c 65 x n + 34 x n + n bi t n = 8.ị ể ứ ế
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Bài 3 : Th tìm cà r tỏ ố
1, Khi vi t ch s 5 vào bên ph i s 45 thì s này tăng lên ... đn vế ữ ố ả ố ố ơ ị
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2, Khi vi t ch s 8 vào sau s 56 thì s này tăng lên ... đn vế ữ ố ố ố ơ ị
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3, Giá tr bi u th c 135ị ể ứ : a + 1234 = 1243 khi a = ....
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4, Giá tr bi u th c 124 x a + 621 khi a = 6 làị ể ứ
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5,Tu i con bao nhiêu ngày thì tu i b đc b y nhiêu tu n, bi t năm nay con 6 tu i. Hai nămổ ổ ố ượ ấ ầ ế ổ
n a tu i b là....tu i?ữ ổ ố ổ
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6, Cho bi u th c P = (x - 342) : 6 v i giá nào c a x thì bi u th c P có giá tr b ng 0?ể ứ ớ ủ ể ứ ị ằ
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7, Có hai thùng d u, thùng th nh t sau khi l y ra 25 l thì s d u còn l i b ng ầ ứ ấ ấ ố ầ ạ ằ
2
1
thùng th ứ
hai . Thùng th hai l y ra 8 l thì còn l i trong thùng 40 l. Tính s d u có c hai thùng?ứ ấ ạ ố ầ ở ả
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8, Có ba bao g o, bao th nh t n ng 45 kg, bao th hai n ng g p đôi bao th nh t. Bao th ạ ứ ấ ặ ứ ặ ấ ứ ấ ứ
ba n ng h n bao th nh t 35 kg. C ba bao n ng ...kg?ặ ơ ứ ấ ả ặ
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9,Năm nay m 36 tu i, tu i m g p 6 l n tu i con, 4 năm n a tu i m g p tu i con ... l n?ẹ ổ ổ ẹ ấ ầ ổ ữ ổ ẹ ấ ổ ầ
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10,Cho bi u th c M = 2004 : m x 5 (m là s t nhiên khác 0 và 2004 chia h t cho m).Tìm m ể ứ ố ự ế
đ M có giá tr l n nh t?ể ị ớ ấ
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