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Recall division facts for 2, 5, and 10

This knowledge comprises exact division facts within 100 in which the divisor is 2, 5, or 10 and the quotient is a whole number from 0 through 10, such as 40÷5=840 \div 5=8. It connects division with equal groups, arrays, and inverse multiplication, including the even-number pattern for division by 2 and the ones-digit patterns for multiples of 5 and 10; division with remainders, larger divisors, and more general division are not included.

Detailed Explanation: Recall division facts for 2, 5, and 10

Division asks: How many equal groups are there? For facts with divisors 22, 55, and (10)(10), use a multiplication fact you know.

Example: Find (40÷5)(40 \div 5).

  1. Think of (40)(40) objects split into equal groups of 55.
  2. Ask: “How many groups of 55 make (40)(40)?”
  3. Use the related multiplication fact:
5×8=40 5 \times 8=40
  1. Therefore:
40÷5=8 40 \div 5=8

So, (40)(40) can be divided into 8 equal groups of 5.

Helpful patterns:

  • Numbers divided by 22 are even.
  • Multiples of 55 end in 00 or 55.
  • Multiples of (10)(10) end in 00.

Learn by doing: Recall division facts for 2, 5, and 10

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Division Cards Model - Deck and Hand Size to Player Count - No Remainder (1 Digit)


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