5*10*90+90+90=?
10 + 10 + 10 + 10 + 10 = ?
90 + 90 + 90 + 90 + 90 = ?
10 + 10 + 10 + 10 + 10
= 20 + 10 + 10 + 10
= 30 + 10 + 10
= 40 + 10
= 50
10 + 10 + 10 + 10 + 10
= 10 . 5
= 50
90 + 90 + 90 + 90 + 90
= 180 + 90 + 90 + 90
= 270 + 90 + 90
= 360 + 90
= 450
90 + 90 + 90 + 90 + 90
= 90 . 5
= 450
10 + 10 + 10 + 10 + 10
= 10 x 5
= 50
90 + 90 + 90 + 90 + 90
= 90 x 5
= 450
10 + 10 + 10 + 10 + 10 = 10 x 5
=50
90 + 90 + 90 + 90 + 90 = 90 x 5
=450
Tính nhẩm:
80 + 10 = 30 + 40 = 80 + 5 =
90 - 80 = 70 - 30 = 85 - 5 =
90 - 10 = 70 - 40 = 85 - 80 =
80 + 10 = 90 30 + 40 = 70 80 + 5 = 85
90 - 80 = 10 70 - 30 = 40 85 - 5 = 80
90 - 10 = 80 70 - 40 = 30 85 - 80 = 5
80+10=90 30+40=70 80+5=85
90-80=10 70-30=40 85-5=80
90-10=80 70-40=30 85-80=5
80 + 10 = 90 30 + 40 = 70 80 + 5 = 85
90 - 80 = 10 70 + 30 = 90 85 - 5 = 80
90 - 10 = 80 70 - 40 = 30 85 - 80 = 5
90 + 90 + 90 + 90 + 90 + ( 50 x 10 ) + 90000 = ?????????????
tự hỏi tự trả lời tí bị trừ điểm hỏi đấp đấy nguyễn minh vũ à
90 + 90 + 90 + 90 + 90 + ( 50 x 10 ) + 90000
=90.5+500+90000
=450+90500
=90950
tick nha
>; <; =?
a) 5 760 ? 5 699 7 849 ? 8 700
b) 9 999 ? 10 001 10 100 ? 10 080
c) 74 685 ? 74 685 90 537 ? 90 357
a) 5760 > 5699
7849 < 8700
b) 9999 < 10001
10100 > 10080
c) 74685 = 74685
90537 > 90357
UNIT 10 : OUR HOUSE IN THE FUTURE
1 What type of houses would they like to have in their future ?
2 Where is it ?
3 What appliances will your house have ?
4 Do you want to ... ?
5 What can some appliansces do ?
My future house will be a UFO. It will be in a mountain. It will surrond by tall, old tree. By this UFO, I will be the first man come to Pluto. My house will have robots use by solar energy, they will help me house work and take care of my pet.
My future house will be a UFO. It will be in a mountain. It will surrond by tall, old trees. By this UFO, I will fly around galaxy and be a first man come to Pluto. My house will have robots use by solar energy, they will help me housework and take care of my pet
My house in the future will be in a mountain. It won't small , It will very big and large. It will surround by the grass corpets and some old tress. There will be a garden of rose 🌹 behind the house . There will be a large swimming pool on the roof .
My future house will have a solar energy. There will be some robots in my house , they will help me some housework such as feeding my pets , cook meals , order some food to me.
I will have a smart TV to help me surt Internet , send and receive e-mails and look to other planets...a smart-clock , a automa dishwasher , a automa washing machine
có thể là mik vt sai Ngữ Pháp gì đó đừng để ý nhá! Nchung sai thì thôi...:)
Vẽ đường đi của Rùa vào hình sau theo các lệnh cho trước. Biết rằng mỗi ô vuông trong hình có chiều dài 10 bước.
Fd 10 Rt 90 fd 10 Lt 90
fd 10 rt 90 fd 10 Lt 90
fd 10 rt 90 fd 30
90 . 10 + 90 . 90
90 . 10 + 90 . 90
= 90 . ( 90 + 10 )
= 90 . 100
= 9000
90 . 10 + 90 . 90
= 90 . ( 10 + 90 )
= 90 . 100
= 9000
90.10+90.90
=90.(10+90)
=90.100
=9000
Tính giá trị của biểu thức:
a) 90 – ( 30 – 20) = ..........................
= ..........................
90 – 30 – 20 = ..........................
= ..........................
b) 100 – (60 + 10) = ..........................
= ..........................
100 - 60 + 10 = ..........................
= ..........................
c) 135 – (30 + 5) = ..........................
= ..........................
135 – 30 – 5 = ..........................
= ..........................
d) 70 + (40 – 10) = ..........................
= ..........................
70 + 40 – 10 = ..........................
= ..........................
a) 90 – ( 30 – 20) = 90 – 10
= 80
90 – 30 – 20 = 60 - 20
= 40
b) 100 – (60 + 10) = 100 – 70
= 30
100 - 60 + 10 = 40 + 10
= 50
c) 135 – (30 + 5) = 135 – 35
= 100
135 – 30 – 5 = 105 – 5
= 100
d) 70 + (40 – 10) = 70 + 30
= 100
70 + 40 – 10 = 110 -10
= 100
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90 + 90 + 10 + 90 + 123456789987654321 + 000000000000000000000 + 19738463789327 + 8473749374938 = ?