Class 3a transferred 120 marks to the solidarity account in preparation for the 30th birthday of our republic. Class 3b transferred 98 marks. How many marks more than Class 3b did Class 3a pay into the solidarity account?
A number or a short expression. Spacing and $ signs are ignored.
Official solution
The class 3a paid 22 marks more into the solidarity fund.
Source: NuminaMath-1.5,
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