Your textbook identified two big ideas that should be emphasized when developing the subtraction algorithm. Circle the letters next to both of those big ideas

a. If there are not enough, make a trade.
b. Always subtract like units.
c. Line up the columns.
d. If there are too many to write, make a trade.
e. Start subtracting on the right.


a and b

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The inter-relating of mathematical ideas is referred to as which of the following?

a) Applying mathematics. b) Reasoning mathematically. c) Making connections. d) Using procedures. e) Finding solutions.

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In general, teachers are allowed to dress in any manner they deem personally acceptable

Indicate whether the statement is true or false

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One of the disadvantages of anger is that when we are angry, we

a. Focus all our attention on the person and behavior we are angry with b. Are mobilized for action and feel considerable physical energy c. Can intimidate other people and thus have more interpersonal power d. Become acutely aware of what it is that's bothering us

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When Timmy wanted a drink, he generally screamed at his mother until she gave him a drink. Which of the following extinction procedures is the most appropriate choice?

a. Extinction of behavior maintained by positive reinforcement. b. Extinction of behavior maintained by negative reinforcement. c. Extinction of behavior maintained by positive punishment. d. Extinction of behavior maintained by automatic reinforcement.

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