67712+0927=
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NHÌN XEM MỘI CHỮ A VIẾT HOA Ở TRONG HÀNG NHÌN CHỮ a thường
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Chu vi hình vuông là :
\(10\times4=40\left(cm\right)\)
Đáp số : \(40\left(cm\right)\)


Lấy 1 cái kẹo bẻ đôi ra
Vậy 2 cái kẹo bẻ được 4 miếng
Vậy mỗi người một miếng .
Sai thì thôi nhé !!!!
[ HT ]
đề bài ko cho là không được lấy của con và cháu nên mẹ lấy kẹo của anh , chị mẹ lấy kẹo của em

mé sao bây giờ con người lại như thế họ vô tâm thắng tay báo cáo mà ko nghĩ đến hoàn cảnh của người ta

Chiều rộng HCN sau khi tăng là:
18 + 3 = 21 ( cm )
Nếu tăng chiều rộng lên 3 cm và giảm chiều dài 4 cm thì hình chữ nhật đó thành hình vuông nên khi đó chiều dài bằng chiều rộng.
Do đó chiều dài HCN sau khi giảm là 21 cm.
Chiều dài HCN ban đầu là:
21 + 4 = 25 ( cm )
Chu vi HCN là:
( 25 + 18 ) x 2 = 86 (cm)

ok
Cách 1
bài giải
3 thùng hàng có số kg là:
120x3=360{kg}
2 xe chở số kg là:
360x2=720{kg}
Đáp số:720kg
Cách 2
2 xe như thế chở được số thùng hàng là:
2x3=6{thùng}
2 xe như thế chở số kg là:
120x6=720{kg}
đáp số:720kg
Bài giải
Ba thùng hàng nặng số ki - lô - gam là :
120 x 3 = 360 ( kg )
Hai xe như thế chở được số ki - lô - gam hàng là :
360 x 2 = 720 ( kg )
Đáp số : 720 kg hàng
TL:
67712+0927= 68639
Học tốt nha