42-21 = 98-46 = 64+22 = 32+47 = 42-21 = 3.8= 2.3= 12:3 = 10:2 =

Решение:

• \( 42 - 21 = 21 \)
• \( 98 - 46 = 52 \)
• \( 64 + 22 = 86 \)
• \( 32 + 47 = 79 \)
• \( 3 \cdot 8 = 24 \)
• \( 2 \cdot 3 = 6 \)
• \( 12 : 3 = 4 \)
• \( 10 : 2 = 5 \)

Ответ: 21, 52, 86, 79, 24, 6, 4, 5.