國小數學基礎口算題

25+40= 58+3= 2×6= 2×3+5= 8×( )=24

68-20= 74-6= 3×4= 4×4-6= 9×( )=36

50+34= 25-9= 2×7= 5×4+9= 7×( )=49

30+52= 54+8= 5×6= 6×7+5= 2×( )=8

20+10= 41-5= 3×8= 7×5-5= 4×( )=32

30+21= 36+8= 7×4= 8×5+8= ( )×9=54

48+30= 50-4= 6×3= 8×9-3= ( )×8=64

84-60= 35-7= 9×2= 7×2+6= ( )×( )=18

92-20= 98-9= 4×8= 9×3+4= ( )×( )=12

20+80= 8+47= 9×6= 4×2-8= 36=( )×( )

57-15= 30-7= 8×7= 5×7-6= 24=( )×( )

25+64= 72-8= 6×4= 3×8+10= 16=( )×( )

22+17= 81-4= 9×5= 9×9-2= 4×9 ○ 32

76-41= 8+47= 5×3= 6×8-6= 9×8 ○ 73

68-18= 74-7= 7×7= 3×9-8= 8 ○ 3×5

53+13= 7+59= 5×8= 7×4+5= 12 ○ 7×3

66-26= 61-9= 9×9= 5×9-6= 18+9 ○ 30

98-43= 5+29= 6×6= 8×2+4= 25-7 ○ 19

53-40= 6+89= 8×1= 3×3+11= 36+12 ○ 50

23+77= 18+29= 9×8= 9×6-8= 72-19 ○ 63