1) Numbers can be added in any order and the sum remains the same because of the ________________________. a) commutative (order) property of addition b) compatible numbers c) estimate d) identity (zero) property of addition 2) The _________________________________________ states that the sum of any number and zero is that same number. a) inverse operations b) compatible numbers c) identity (zero) property of addition d) associative (grouping) property of addition 3) Addends can be regrouped and the sum remains the same because of the _______________________. a) compatible numbers b) inverse operations c) identity (zero) property of addition d) associative (grouping) property of addition 4) To give and approximate number or answer is to _______________. a) estimate b) compatible numbers c) inverse operations d) identity (zero) property of addition 5) Numbers that are easy to add, subtract, multiply and divide mentally are called ______________ a) compatible numbers b) commutative (order) property of addition c) associative (grouping) property of addition d) inverse operations 6) Two operations that undo each other are called ______________ a) compatible numbers b) associative (grouping) property of addition c) inverse operations d) estimate

Math Topic 2 Vocabulary (Savvas)

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