"小學雙語數學/KA題集" 修訂間的差異

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(未顯示同一使用者於中間所作的 13 次修訂)
行 1： 行 1：
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* 挑戰一
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*說明
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*# Erica had a collection of 55 stuffed animals.
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__TOC__
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*# She took out her favorite 7 animals and then equally divided the remaining animals between her 3 little sisters.
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==[https://www.khanacademy.org/math/cc-fourth-grade-math 4th grade]==
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*# How many stuffed animals did each of Erica's sisters get?
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=== [https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-add-sub-topic Addition and subtraction] ===
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*# Ans: 16 stuffed animals
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=== [https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-mult-div-topic Multiplication and division] ===
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* Multiplication by 10s, 100s, and 1000s
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* Multi-digit multiplication: place value and area models
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* Multi-digit multiplication: standard algorithm
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* Comparing with multiplication
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* Division problems that work out nicely
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* Division: place value and area
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* Multi-digit division
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* Remainders
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* Multiplication, division word problems
  
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*#* Hint #1 / 3
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=== [https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-fractions-topic Fractions] ===
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*#** We can subtract to find the total number of stuffed animals Erica gave away.
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=== [https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-decimals Decimals] ===
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*#** 55-7 = 48 (55, minus, 7, equals, 48)
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=== [https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-measurement-topic Measurement and data] ===
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*#* Hint #2 / 3
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=== [https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-geometry-topic Geometry] ===
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*#** She divided the animals she gave away equally between her 3 little sisters.  
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=== [https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-fact-mult-topic Factors, multiples and patterns] ===
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*#** We can divide 48÷3, (48, divided by, 3) to see how many animals each sister got.
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=== [https://www.khanacademy.org/math/cc-fourth-grade-math/cc-4th-place-value-rounding Place value and rounding] ===
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*#* Hint #3 / 3
 
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*#** Each of Erica's sisters got 16 stuffed animals.
 
  
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* 挑戰二
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==5th grade==
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*# A group of 4 friends is playing cards.
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==6th grade==
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*# The deck has 70 cards.
 
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*# To start the game, the dealer makes a pile of 15 cards in the center.
 
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*# Then the remaining cards are dealt one at a time to each player until all the cards are gone.
 
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*# What is the greatest number of cards any player will have after all the cards are dealt?
 
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*# Ans:14 cards
 

於 2018年11月15日 (四) 06:35 的最新修訂

  • 說明

4th grade

Addition and subtraction

Multiplication and division

  • Multiplication by 10s, 100s, and 1000s
  • Multi-digit multiplication: place value and area models
  • Multi-digit multiplication: standard algorithm
  • Comparing with multiplication
  • Division problems that work out nicely
  • Division: place value and area
  • Multi-digit division
  • Remainders
  • Multiplication, division word problems

Fractions

Decimals

Measurement and data

Geometry

Factors, multiples and patterns

Place value and rounding

5th grade

6th grade

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