x - 3000 = 500 + 400
a) 9000 - 7000 = ...............
3000 - 2000 = ...............
8000 -8000 = ...............
5000 - 1000 = ...............
6000 - 5000 = ...............
10000 - 2000 = ...............
b) 4600 - 400 = ...............
8500 - 500 = ...............
9900 - 300 = ...............
6800 - 700 = ...............
7200 - 3000 = ...............
5600 - 2000 = ...............
3800 - 3000 = ...............
7400 - 400 = ...............
a) 9000 - 7000 = 2000
3000 - 2000 = 1000
8000 -8000 = 0
5000 - 1000 = 4000
6000 - 5000 = 1000
10000 - 2000 = 8000
b) 4600 - 400 = 4200
8500 - 500 = 8000
9900 - 300 = 9600
6800 - 700 = 6100
7200 - 3000 = 4200
5600 - 2000 = 3600
3800 - 3000 = 800
7400 - 400 = 7000
a)9000-7000=2000
3000-2000=1000
8000-8000=0
5000-1000=4000
6000-5000=1000
10000-2000=8000
b)4600-400=4200
8500-500=8000
9900-300=9600
6800-700=6100
7200-3000=4200
5600-2000=3600
3800-3000=800
7400-400=7000
a) 9000 - 7000 = 2000
3000 - 2000 = 1000
8000 -8000 = 0
5000 - 1000 = 4000
6000 - 5000 = 1000
10000 - 2000 = 8000
b) 4600 - 400 = 4200
8500 - 500 = 8000
9900 - 300 = 9600
6800 - 700 = 6100
7200 - 3000 = 4200
5600 - 2000 = 3600
3800 - 3000 = 800
7400 - 400 = 7000
1. Tính nhẩm :
a) 5200 + 400 = 6300 + 500 = 8600 + 200 =
5600 - 400 = 6800 - 500 = 8800 - 200 =
b) 4000 + 3000 = 6000 + 4000 = 9000 + 1000 =
7000 - 4000 = 10000 - 6000 = 10000 - 9000 =
7000 - 3000 = 10000 - 4000 = 10000 - 1000 =
1. Tính nhẩm :
a) 5200 + 400 = 5600 6300 + 500 = 6800 8600 + 200 = 8800
5600 - 400 = 5200 6800 - 500 = 6300 8800 - 200 = 8600
b) 4000 + 3000 = 7000
6000 + 4000 = 10000
9000 + 1000 = 10000
7000 - 4000 = 3000
10000 - 6000 = 4000
10000 - 9000 = 1000
7000 - 3000 = 4000
10000 - 4000 = 6000
10000 - 1000 = 9000
a) 5200 + 400 = 5600 6300 + 500 = 6800 8600 + 200 = 8900
5600 - 400 = 5200 6800 - 500 = 6300 8800 - 200 = 200
b) 4000 + 3000 = 7000 6000 + 4000 = 10000 9000 + 1000 = 10000
7000 - 4000 = 3000 10000 - 6000 = 4000 10000 - 9000 = 1000
7000 - 3000 = 4000 10000 - 4000 = 6000 10000 - 1000 = 9000
1. Tính nhẩm :
a) 5200 + 400 = 5600 6300 + 500 = 6800 8600 + 200 = 8800
5600 - 400 = 5200 6800 - 500 = 6300 8800 - 200 = 8600
b) 4000 + 3000 = 7000 6000 + 4000 = 10000 9000 + 1000 = 10000
7000 - 4000 = 3000 10000 - 6000 = 4000 10000 - 9000 =1000
7000 - 3000 = 4000 10000 - 4000 = 6000 10000 - 1000 = 9000
Bài 1:Tính nhẩm:
BCNN ( 40 ; 60 ) ; BCNN ( 300 ; 700 ; 500 )
BCNN ( 2000 ; 400 ; 3000 ) ; BCNN ( 25 ; 125 ; 100 )
Tính nhẩm:
a) 3000 + 5000 = ..........
5000 + 5000 = ..........
4000 + 4000 = ..........
7000 + 2000 = ..........
6000 + 1000 = ..........
2000 + 8000 = ..........
b) 2000 + 700 = ..........
100 + 1000 = ..........
6000 + 600 = ..........
8000 + 500 = ..........
5000 + 300 = ..........
400 + 6000 = ..........
a) 3000 + 5000 = 8000
5000 + 5000 = 10 000
4000 + 4000 = 8000
7000 + 2000 = 9000
6000 + 1000 = 7000
2000 + 8000 = 10 000
b) 2000 + 700 = 2700
100 + 1000 = 1100
6000 + 600 = 6600
8000 + 500 = 8500
5000 + 300 = 5300
400 + 6000 = 6400
a) 3000+5000=8000
5000+5000=10000
4000+4000=8000
7000+2000=9000
6000+1000=7000
2000+8000=10000
b) 2000+700=2700
100+1000=1100
6000+600=6600
8000+500=8500
5000+300=5300
400+6000=6400
a) 3000 + 5000 = 8000
5000 + 5000 = 10000
4000 + 4000 =8000
7000 + 2000 = 9000
6000 + 1000 = 7000
2000 + 8000 = 10000
b) 2000 + 700 = 9000
100 + 1000 = 1100
6000 + 600 =12000
8000 + 500 = 13000
5000 + 300 = 5300
400 + 6000 = 6400
X+100+100+200+500=3000-2000
3000 : 10 x 500 = ?
2000 : 100 x 600= ?
3000 : 10 x 500 = 300 x 500 = 150000
2000 : 100 x 600 = 20 x 600 = 12000
3000+4000+2000+1000+500-500+500-500+500-500+500-500
gửi cậu hỏi để chơi mà gõ thế này thì ko tính đâu nha
doxuan quang
Tính nhẩm:
5000 + 100 = ..................
7400 - 400 = ..................
2000 3 + 600 = ..................
8000 : 2 + 2000 = ..................
6000 - (5000 - 1000) = ..................
6000 - 5000 + 1000 = ..................
7000 - 3000 x 2 = ..................
(7000 - 3000) x 2 = ..................
5000 + 100 = 5100
7400 - 400 = 7000
2000 3 + 600 = 6600
8000 : 2 + 2000 = 6000
6000 - (5000 - 1000) = 2000
6000 - 5000 + 1000 = 2000
7000 - 3000 x 2 = 1000
(7000 - 3000) x 2 = 8000
5000 + 100 = 5100
7400 - 400 = 7000
2000 3 + 600 = 6600
8000 : 2 + 2000 = 6000
6000 - (5000 - 1000) = 2000
6000 - 5000 + 1000 = 2000
7000 - 3000 x 2 = 1000
(7000 - 3000) x 2 = 8000
5000 + 100 = 5100
7400 - 400 = 7000
2000 3 + 600 = 6600
8000 : 2 + 2000 = 6000
6000 - (5000 - 1000) = 2000
6000 - 5000 + 1000 = 2000
7000 - 3000 x 2 = 1000
(7000 - 3000) x 2 = 8000
Tính nhẩm
8000 – 3000 =
6000 + 3000 =
7000 + 500 =
9000 + 900 + 90 =
Học sinh nhẩm và ghi kết quả như sau:
8000 – 3000 = 5000
6000 + 3000 = 9000
7000 + 500 = 7500
9000 + 900 + 90 = 9990