1. จงหาผลหาร
1) 75 \(\div\) 5
วิธีทำ
75 \(\div\) 5
= 15
ตอบ 15
2) 880 \(\div\) 22
วิธีทำ
880 \(\div\) 22
= 40
ตอบ 40
3) 0 \(\div\) 2
วิธีทำ
0 \(\div\) 2
= 0
ตอบ 0
4) -10 \(\div\) 1
วิธีทำ
-10 \(\div\) 1
= -(10 \(\div\) 1)
= -10
ตอบ -10
5) -150 \(\div\) (-1)
วิธีทำ
-150 \(\div\) (-1)
= 150 \(\div\) 1
= 150
ตอบ 150
6) (-27) \(\div\) 9
วิธีทำ
(-27) \(\div\) 9
= -(27 \(\div\) 9)
= -3
ตอบ -3
7) 56 \(\div\) (-8)
วิธีทำ
56 \(\div\) (-8)
= -(56 \(\div\) 8)
= -7
ตอบ -7
8) 10,000 \(\div\) (-100)
วิธีทำ
10,000 \(\div\) (-100)
= -(10,000 \(\div\) 100)
= -100
ตอบ -100
9) (-196) \(\div\) (-14)
วิธีทำ
(-196) \(\div\) (-14)
= 196 \(\div\) 14
= 14
ตอบ 14
10) -2,250 \(\div\) (-25)
วิธีทำ
-2,250 \(\div\) (-25)
= 2,250 \(\div\) 25
= 90
ตอบ 90
11) [(-100) \(\div\) (-2)] \(\div\) 10
วิธีทำ
[(-100) \(\div\) (-2)] \(\div\) 10
= (100 \(\div\) 2) \(\div\) 10
= 50 \(\div\) 10
= 5
ตอบ 5
12) (-25 \(\div\) 5) \(\div\) 5
วิธีทำ
(-25 \(\div\) 5) \(\div\) 5
= [-(25 \(\div\) 5)] \(\div\) 5
= (-5) \(\div\) 5
= -(5 \(\div\) 5)
= -1
= -(5 \(\div\) 5)
= -1
ตอบ -1
13) -300 \(\div\) (-35 \(\div\) 7)
วิธีทำ
-300 \(\div\) (-35 \(\div\) 7)
= -300 \(\div\) [-(35 \(\div\) 7)]
= -300 \(\div\) (-5)
= 300 \(\div\) 5
= 60
= 300 \(\div\) 5
= 60
ตอบ 60
14) (-450) \(\div\) [(-90) \(\div\) (-3)]
วิธีทำ
(-450) \(\div\) [(-90) \(\div\) (-3)]
= (-450) \(\div\) (90 \(\div\) 3)
= (-450) \(\div\) 30
= -(450 \(\div\) 30)
= -15
= -(450 \(\div\) 30)
= -15
ตอบ -15
15) [(-144) \(\div\) 3] \(\div\) [(-78) \(\div\) (-13)]
วิธีทำ
[(-144) \(\div\) 3] \(\div\) [(-78) \(\div\) (-13)]
= [-(144 \(\div\) 3)] \(\div\) (78 \(\div\) 13)
= (-48) \(\div\) 6
= -(48 \(\div\) 6)
= -8
= -(48 \(\div\) 6)
= -8
ตอบ -8