Bài tập ôn tập học sinh giỏi tuần 12 môn Toán, Tiếng việt lớp 3

 BÀI TẬP CUỐI TUẦN 12
HỌ VÀ TÊN:.........................................................................LỚP 3B
Bài 1: Đặt tính rồi tính
246: 7 463 : 6 124 : 5 234 X 7 367 : 3 234 x 6 784 : 7
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Bài 2: Điền số thích hợp vào ô trống
Số lớn
 35
 56
 80
 54
 40
 63
Số bé
 5
 8
 8
 6
 5
 7
Số lớn hơn số bé bao nhiêu đơn vị?
Số lớn gấp mấy lần số bé?
Bài 3: Tìm X
a) X – 16 + 4 = 32 + 20 b) X x 9 : 9 = 44 : 4 c) X: ( 2 + 4 + 6 +......+ 30 + 32) = 2 x 3
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Bài 4: Vườn nhà Thanh có 72 cây vừa vải, vừa nhãn. Thanh đố Bình biết vườn nhà Thanh có bao nhiêu cây vải, bao nhiêu cây nhãn? Và Thanh cho biết số cây vải bằng 1\5 số cây nhãn. Các bạn tính giúp bạn Bình?
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Bài 5: Một đàn gà có 54 con. Số gà trống bằng 1\5 số gà mái. Hỏi số gà mái hơn số gà trống bao nhiêu con
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Bài 6: An và Bình có tổng cộng 50 viên bi. Nêu An bớt ra 2 viên bi thì số bi còn lại của An sẽ gấp 3 lần số bi của Bình. Hỏi mỗi bạn có bao nhiêu viên bi?
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Bài 7: Em hãy viết thư cho một người bạn, kể về một cảnh đẹp mà em biết.
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