Decimal Detective Multiplying Decimals Intermediate Math CCSS: 5.NBT.1, 5.NBT.7 Add, subtract, multiply and divide decimals to hundredths using concrete.
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Decimal DetectiveMultiplying Decimals
Intermediate MathCCSS: 5.NBT.1, 5.NBT.7 Add, subtract, multiply and divide decimals to hundredths using concrete models or drawings and strategies based on place value, properties of operations, and/or the relationship between addition and subtraction; relate the strategy to a written method and explain the reasoning used. Additional Information for teacher about activity: This activity encompasses; using mental math to multiply by 10, 100, 1000, estimating products of whole numbers and decimals, products of whole numbers and decimals, and product of two decimals. The teacher can select all or part of the cards for differentiation. Additional blank cards are included for teacher use. What’s included:□ Task Card in WORD□ Anchor Charts□ Student Activity Cards for self or partner directed work□ Answer Key for self-checking □ Materials Needed: number cube, markers, CHILD Activity Game Board and Challenge Question Answer Sheets□ Technology Connection: http://www.ixl.com/math/grade-5/estimate-products-of-decimals, http://www.ixl.com/math/grade-5/multiply-a-decimal-by-a-power-of-ten, http://www.ixl.com/math/grade-5/multiply-a-decimal-by-a-one-digit-whole-number, http://www.ixl.com/math/grade-5/multiply-a-decimal-by-a-multi-digit-whole-number
STATION TASK CARD ____________Station Activity Name: Decimal Detective Standard: Number and Operations in Base Ten Skill/Objective: (COPY IN YOUR PASSPORT) Multiplying Decimals Directions:
1. Work in a group of 2-3 partners. 2. You will need a set of cards, markers for each student, a number
cube, an answer card and a CHILD activity game board. 3. Shuffle cards and place face down. 4. Tallest partner goes first. 5. Pick a card, read it aloud and answer. Use the Anchor Charts to
help you solve the problems. 6. Partner to the left checks the answer. 7. If correct, roll the number cube and move that many spaces on
the board. If not correct, place the card at the bottom of the pile. 8. Take turns until someone reaches the end of the board.
Challenge: Write your answer on a Challenge Question Answer Sheet. Two years ago, a computer company had sales that totaled 6.5 million dollars. Last year the sales increased 2.5 times over the previous year. What were the sales totals last year? Reflection: I think the easiest strategy or model to use to multiply decimals is . . .