2.10 Luyện tập Bảng chia 7
Học sinh luyện tập nắm vững kiến thức Bảng chia 7.
Làm xong biết đáp án và cách giải chi tiết
Học sinh có thể hỏi và trao đổi lại nếu không hiểu
Xem lại lý thuyết, lưu bài tập và note lại các chú ý
Biết điểm yếu và có giải pháp cải thiện
2.10 Luyện tập Bảng chia 7
Điền đáp án thích hợp vào chỗ trống
Mẹ hái được 90 bắp ngô, mẹ bán đi 41 bắp ngô và số bắp ngô còn lại mẹ chia đều vào 7 túi. Hỏi mỗi túi có bao nhiêu bắp ngô?
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Mẹ còn lại số bắp ngô là: 90 – 41 = 49 (bắp)
Mỗi túi có số bắp ngô là: 49 : 7 = 7 (bắp)
Đáp số: 7 bắp.
Gợi ý
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Điền đáp án thích hợp vào chỗ trống
Nhà Hà nuôi 35 con gà, mẹ Hà bán đi
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Mẹ Hà bán đi số con gà là: 35 : 7 = 5 (con gà)
Mẹ Hà còn lại số con gà là: 35 – 5 = 30 (con gà)
Đáp số: 30 con gà.
Gợi ý
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Chọn đáp án đúng nhất
Mẹ Lan có 45m vải, may một bộ quần áo hết 7m vải, Hỏi mẹ Lan may được nhiều nhất bao nhiêu bộ quần áo?
B. 6 bộ
B. 6 bộ
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Ta có: 45 : 7 = 6 dư 3
Vậy mẹ Lan may được nhiều nhất 6 bộ quần áo.
Gợi ý
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Điền đáp án thích hợp vào chỗ trống
Một tuần có 7 ngày. Hỏi 70 ngày có bao nhiêu tuần?
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70 ngày có số tuần là:
70 : 7 = 10 (tuần)
Đáp số: 10 tuần
Gợi ý
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Điền đáp án thích hợp vào chỗ trống
Có 49 học sinh xếp thành các hàng, mỗi hàng có 7 học sinh .Hỏi số học sinh đó xếp được thành bao nhiêu hàng.
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Số học sinh đó xếp được thành số hàng là: 49 : 7 = 7 ( hàng)
Đáp số: 7 hàng.
Gợi ý
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Điền đáp án thích hợp vào chỗ trống
Khi chia số có hai chữ số giống nhau cho 7 ta được thương bằng 6 và còn dư. Vậy số bị chia trong phép chia đó là: ….
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Vì khi chia số có hai chữ số giống nhau cho 7 ta được thương bằng 6 và còn dư
=> số đó = 6 x 7 + dư = 42 + dư
Mà số dư < số chia => số dư < 7
Mà trong các số dư nhỏ hơn 7 chỉ có số 2 thoả mãn: 42 + 2 = 44
Vậy số có hai chữ số giống nhau đó là 44
Gợi ý
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Điền đáp án thích hợp vào chỗ trống
Khi chia số tròn chục có hai chữ số cho 7 ta được thương bằng 5 và còn dư. Vậy số bị chia trong phép chia đó là: ….
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Vì khi chia số tròn chục có hai chữ số cho 7 ta được thương bằng 5 và còn dư
=> số đó = 7 x 5 + số dư = 35 + số dư
Vì số dư nhỏ hơn số chia nên số dư < 7
Trong các số dư nhỏ hơn 7 ta thấy chỉ có số 5 thoả mãn : 35 + 5 = 40 là số tròn chục
Vậy số tròn chục đó là: 40
Gợi ý
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Điền đáp án thích hợp vào chỗ trống
Khi chia số có hai chữ số cho 7 ta được thương bằng 5, dư 3. Vậy số bị chia là: …
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Vì khi chia số đó cho 7 ta được thương bằng 5, dư 3.
Vậy số bị chia là: 7 x 5 + 3 = 38
Đáp số: 38
Gợi ý
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Điền đáp án thích hợp vào chỗ trống
Tìm a, biết:
a x 7 + 7 = 49
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a x 7 + 7 = 49
a x 7 = 49 – 7
a x 7 = 42
a = 42 : 7
a = 6
Gợi ý
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Điền đáp án thích hợp vào chỗ trống
Tìm a, biết:
a x 7 – 5 = 30
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a x 7 – 5 = 30
a x 7 = 30 + 5
a x 7 = 35
a = 35 : 7
a = 5
Gợi ý
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Điền đáp án thích hợp vào chỗ trống
Tính:
42 : 7 + 63 : 7 = ?
Gợi ý
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Điền đáp án thích hợp vào chỗ trống
Tính:
49 : 7 – 2 = ?
Gợi ý
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Điền đáp án thích hợp vào chỗ trống
Tính:
56 : 7 + 5 = ?
Gợi ý
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Điền đáp án thích hợp vào chỗ trống
Tính nhẩm:
63 : 7 = ?
Gợi ý
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Điền đáp án thích hợp vào chỗ trống
Tính nhẩm:
28 : 7 = ?
Gợi ý
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Chúc mừng bạn vừa hoàn thành 15 câu hỏi Luyện tập
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