Number trains: numbers 30-50

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Arrange train carriages according to numbers on their sides. The numbers are represented in a range of formats such as words, numerals, base-10 blocks or counting frames. Identify the numbers that come before and after starting numbers. Work with numbers in the range 30–50. This learning object is the third in a series of five objects that progressively increase in difficulty. The series is also packaged as a combined learning object.