Giải Vở bài tập Toán lớp 3 bài 3: Luyện tập

Thứ hai - 19/08/2019 10:42
Giải Vở bài tập Toán lớp 3 bài 3: Luyện tập
1. Đặt tính rồi tính:
a.                          
b)                         

2. Tìm X:
a) x - 322 = 415
              x = 415 + 322
              x = 737
b) 204 + x = 355
               x = 355 - 204
               x = 151
3. Khối lớp Một và khối lớp Hai có tất cả 468 học sinh, trong đó khối lớp Một có 260 học sinh. Hỏi khối lớp Hai có bao nhiêu học sinh?
Tóm tắt:
Khối lớp Một và Hai có: 468 học sinh
Khối lớp Một có: 260 học sinh
Khối lớp Hai có: …..học sinh?
Giải:
Số học sinh khối lớp Hai là:
468 - 260 = 208 (học sinh)
Đáp số: 208 học sinh

4. (Học sinh tự xếp)
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