A ______ is a mathematical rule expressed in symbols., compass, formula, graph, fraction, We need to ______ the total cost by four people., divide, add, compare, solve, A ______ number can be split into two equal parts., billion, percent, even, ordinal, He tried to ______ how much money he spent last month., calculate, subtract, sketch, collect, She used a ______ to draw a perfect circle in her notebook., formula, compass, symbol, quarter, There are 12 eggs in a ______., dozen , graph, minus, fraction, Seven ______ three equals four., plus, minus, percent, fraction, An ______ shows that two mathematical expressions are equal., ordinal , equation, fraction, graph, The world population is more than seven ______ people., equation, quarter, arithmetic, billion, He is very good at ______, especially adding and subtracting numbers., arithmetic, compass, dozen, graph.

unit 12**1

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