Now print a copy and solve the equations. Use pattern blocks to help you solve them.
Add
First use skip counting to add the number in parenthesis over and over until you get the indicated answer.Both sides should equal each other = equation. Work with pattern blocks to help solve the problems.
(4) ex: 4+4+4 = 12
OOOO 4 3 groups of 4 circles horizontally
OOOO
OOOO
3 4 groups of 3 circles vertically
Subtract
Next use the answer (difference) above, and subtract a multiple of the number in parenthesis.Remember the biggest number goes first.Skip counting will help find the multiple.Ex:2,4,6 or 3,6, 9, or 5, 10, 15
ex: 12-8 = 4 multiples of (4) are 4, 8, 12
QQQQ
QQQQ
QQQQ
Multiplication
Then write it as a multiplication problem. Your addition equation will show you how many groups you have. Then multiply it by the number in each group.
4+4+4 =12 ex: 4x3=12 ex: 3x4 = 12
OOOO 4
OOOO
OOOO
3
Division
Finally, write a division equation. Look at your multiplication equation. Take the product and divide it by how many groups are in the equation.
4x3 = 12 12 /3 = 4 12/4 = 3
OOO 3 12 O's 4 groups of 3's horizontal
OOO
OOO
OOO
4 12 O's 3 groups of 4's vertical
Follow the same procedure for the following:
(5) = 25
add
subtract
multiply
divide
(3) = 21
add
subtract
multiply
divide
(6) = 24
add
subtract
multiply
divide
(8) = 40
add
subtract
multiply
divide
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