24 : 3 + 36 | =......................... =......................... | 18 : 3 + 26 | =......................... =......................... | 73 - 30 : 3 | =......................... =......................... |
52 - 12 : 3 | =......................... =......................... | 21 : 3 + 54 | =......................... =......................... | 27 : 3 + 38 | =......................... =......................... |
