1-2 減去負數

減去負數：8 – ( – 3 ) = ?

• 5
• –5
• 11
• 24

請選出正確的計算過程：1 – ( –3 ) = ?

• = 3 – 1 = 2
• = 1 + 3 = 4

請選出正確的計算過程：3 – ( – 9 ) = ?

• = 3 + 9 = 12
• = 3 – 9 = – 6

請選出正確的計算過程：4 – ( – 6 ) = ?

• = 4 – 6 = – 2
• = 4 + 6 = 10
• = 6 – 4 = 2

請選出正確的計算過程：2 – ( – 8 ) = ?

• = – ( 2 + 8 ) = – 10
• = 2 + 8 = 10
• = – ( 8 – 2 ) = – 6

請選出正確的計算過程：( – 4 ) – ( – 6 ) = ?

• = ( – 4 ) – 6 = – 10
• = (– 4 ) + 6 = 2
• = ( – 6) – 4 = – 10

請選出正確的計算過程：( – 1) – ( – 9 )= ?

• = – ( 9 – 1 ) = – 8
• = 1 – 9 = – 8
• = ( – 1 ) + 9 = 8
• = 1 + 9 = 10

請選出正確的計算過程：( – 4) – 6= ?

• = – ( 6 – 4 ) = – 2
• = – ( 4 – 6 ) = – ( – 2 ) =+ 2
• = – ( 4 + 6 ) = – 10
• = 6 – 4 = 2

3 – ( – 8 )= ?

• 5
• – 5
• 11
• –11

2 – ( – 3 ) = ?

• 1
• – 1
• 5
• – 5