Aritmetika- Slajdovi- Metodika Matematika- FASPER

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4 + 2 = 6

: . 3 2 , 5 3 + 2 = 5

: , , 5 + 1 = 6 6 + 1 = 7

3 + 2 = 5 ( , , )

3+2 3 2. 3+2=5 5 3 2!

, ( ) 5 + 1 > 5 5 + 1 = 6

5+1 1 5, 6 1 5

6 1 < 6 6 1 = 56 1 1 6, 5 1 6

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7 - ___ = 66 - __ = 5____ - ____ = 34 - ___ = ___

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3 3-1=2 3-2=1 3-3=0 5-5=0, 4 , , , 4-4=0

3 + 2 = 52 + 3 = 53 + 2 = 2 + 3

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2+5 2 5 5+2 5 22 + 5 = 75 + 2 = 7 ?

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( 3 + 2 ) + 4 = 5 + 4 = 9

3 + (2 + 4) = 3 + 6 = 9

( 3 + 4 ) + 2 = 7 + 2 = 9

( 3 + 2 ) + 4 = 3 + ( 2 + 4 ) = ( 3 + 4 ) + 2

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3 + 4 = 7 + 2 = 9!!!!!

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5 2 = 2 + 2 + 2 + 2 + 2 2 5 = 5 + 5

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3 1 = 3

3 0 = 0 0 = 0 = 0

1 = 1 + 1 + 1 .... + 1 =

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, . : 3 2 = 6, 4 (3 2 ) = 4 6 = 24 4 3 = 12, , (4 3) 2=12 2=24 , 4 3 2 = 4 (3 2)=(4 3) 2

. : 4 + 2 = 6 . 3 (4+2) = 3 6 = 18 3 4 = 12, 3 2 = 6. 3 4 + 3 2 = 12 + 6 = 18

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4 16 = 4 (10+6)= 4 10 + 4 6=40+24=64

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6 2 = 4 , 3 (6-2) = 3 4 = 12 3 6 = 12 , 3 2 = 6 , 3 6 3 2 = 18 6 = 12

: 3 (6 - 2) = 3 4 = 3 6 - 3 2 = 12

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, . 5 18 = 5 (10 + 8) = 5 10 + 5 8 = 50 + 40 = 90 5 18 = 5 (20 2 ) = 5 20 5 2 = 100 10 = 90

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4 11 = 4 (10 + 1) = 40 + 4 = 444 19 = 4 (20 1) = 80 4 = 76

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REENJE:1. A={10, 3, 5, 7, 71}, B ={-25, -2, -4, -1 }. 2.a)1, 2, 3, 4, 5 ; b)-6, -5, -4, -3, -2; c)-2, -1, 0, 1, 2; d) -2, -1, 0, 1, 2; 3.a) 40C; b)90C; c) -10C; d)00C4.Suprotni brojevi brojevima -4, 3, 0, +5, -(-1) su redom: +4, -3, 0, -5, + (-1)5. a)najhladnije je bilo u 6h, a najtoplije je bilo u 14h. b)od 0-10h i od 20h 24h je bila negativna, a od 10h 20h je bila pozitivna. c) razlika je 14 0CREENJE:1.a)T1, b)T2, c) T12. a) -18,18; b) 0; c)ne postoji; d)-2, -1, 0, 1, 23. a) {13, 16}, b) {-9, -5, -22}, c) {-9, -22}4.a) < ; b) < ; c)