Question

va rog multttttttttttttt!​

Answer 1

1. a)1230

b) 7018

c)2000

d)555

e)304

f)9909

●9909; 7018; 2000; 1230; 555; 304.

●nr impare sunt: 555, 9909.

●1230-1000

2. 3488+2096=5584

7000-3777=3223

59×24=1416

100:10=10

3. a+450:5=10×17

a+90=170

a=170-90

a=80

87:3+b=6×29

29+b=174

b=174-29

b=145

4. 27+(90×8-10×70):10-1=

27+(720-700):10-1=

27+20:10-1=

27+2-1=

27+1=

28

P=28

P= 4×l

4×l=26

l=28:4

l=7cm= 0,7mm