Adding integers with block models

These blocks total +4 Each blue block represents +1 1.Write the addition expression that represents the block model. −1 −9 +1 +9 2.Write the addition expression that represents the block model. −2 −8 +2 +8 These blocks total -4 Each red block represents -1 3.Write the addition expression that represents the block model. −1 −9 +9 +1 4.Write the addition expression that represents the block model. −3 −7 +7 +3 5.Write the addition expression that represents the block model. −2 −8 +2 +8 Write the addition expression that represents the block model. 6. 0 −8 +8 +4 7.Write the addition expression that represents the block model. −2 −6 +2 +6 8.a Write the addition expression for the answer choice that does not equal zero. c All answer choices equal zero except one. Which choice does NOT equal zero? d b 9. Write the addition expression for the answer choice that does not equal zero. c a All answer choices equal zero except one. Which choice does NOT equal zero? d b 10.Write the expression for the answer choice that does not equal +2. c a All answer choices equal +2 except one. Which choice does NOT equal +2? d b 11.Write the expression for the answer choice that does not equal +3. c a All answer choices equal +3 except one. Which choice does NOT equal +3? d b Write the expression that represents the block model. 12. +2 −2 +6 -6 13.Write the expression that represents the block model. +3 −3 -7 +7 14.Write the expression that represents the block model. +8 −8 +2 -2 15.Write the expression that represents the answer choice that does not equal −3. a c All answer choices equal -3 except one. Which choice does NOT equal -3? d b 16.Write the expression for the answer choice that does not equal −2. c a All answer choices equal -2 except one. Which choice does NOT equal -2? d b 17.Write the expression that represents the model. −1 −9 +9 +1 18.Write the expression that represents the model. −1 −3 +3 -2 19.Write the expression that represents the model. −1 +1 +4 -4 Write the expression that represents the model. 20. −1 −9 +9 +1 |

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