Giải Vở bài tập Toán 3 bài 44: Luyện tập

Thứ ba - 20/08/2019 22:53
Giải Vở bài tập Toán 3 bài 44: Luyện tập
1. Viết số thích hợp vào chỗ chấm:
a) 5m 3dm = 53dm
    9m 2dm = 92dm
    8dm 1cm = 81cm

b) 7m 12cm = 712cm
    4m 5cm = 405cm
    3m 2dm = 320cm

2.  Tính:
a) 25dam + 42dam = 67dam
    83hm - 75hm = 8hm
    13km x 5 = 65km
b) 672m + 314m = 986m
    475dm - 56dm = 419dm
    48cm : 6  = 8cm

3. Khoanh vào chữ đặt trước câu trả lời đúng:
Số đo độ dài nhỏ hơn 5m 15cm là:
A. 505cm
B. 515cm
C. 550cm
D. 551cm
Chọn đáp án: A: 505 cm.

4. Ba bạn An, Bình, Cường thi ném bóng. An ném xa 4m 52cm, Bình ném xa 450cm, Cường ném xa 4m 6dm. Hỏi:
a. Ai ném được xa nhất ?
b. Cường ném được xa hơn An bao nhiêu xăng-ti-mét ?
Tóm tắt:
An ném: 452cm
Bình ném: 450cm
Cường ném: 460cm
Bài Giải:
a. Cường ném xa nhất.
b. Cường ném xa hơn An là:
460 - 452 = 8 (cm)
Đáp số: 8cm
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