Addition +
ADDITION
87 + 42 =
129
SUBTRACTION
81-60 =
21
Too hard? Split it up!
81 = 60 + 21
So replace this equation into the original equation:
(60+21) - 60 = 21 left
4 divided by 2
2
MULTIPLICATION
7 X 10=
70
DIVISION
12 ÷ 2 =
6
ADDITION
523 + 545 =
10768
SUBTRACTION
165 - 50 =
115
Too hard? Split it up!
165 = 50 + 115
Replace this equation into the original equation:
(50 + 115) - 50 = 115
MORE ADDITION
155 + 410=
565
MULTIPLICATION
6 x 4 =
24
Too hard? Use half and double strategy.
I don't know 6 x 4 but I know 3 x 4 = 12.
Since 3 + 3 = 6 (double), I can double 12.
12 + 12 = 24
DIVISION
What is 15 ÷ 3?
5
Too hard? Make equal groups. 3 groups of 15 is
5 + 5 + 5 = 15
So 15 ÷ 3 = 5
ADDITION
935 + 205 =
1,140
SUBTRACTION
80 - 42 =
38
Too hard? Make the top number greater.
80 - 42 is equal to... (80-2) - (42-2) - we removed the same number from each side.
So 78 - 40 = 38
MORE MULTIPLICATION
8 x 9 =
72
MULTIPLICATION
8 x 8 =
64
If this is too hard, then split it up:
8 = 4 + 4
so (4x8) + (4x8) = 32 + 32 = 64
DIVISION
45 ÷ 5 =
9
Too hard? Skip count equal groups!
45 = 5, 10, 15, 20, 25, 30, 35, 40, 45
So 9 groups altogether.
ADDITION
1060 + 432 =
1,492
SUBTRACTION
60 - 35 =
25
Too hard? Split up the numbers:
60 = 10 + 10 + 10 + 10 + 10 + 5 + 5
= 10 + 10 + (10 + 10 + 10 + 5) + 5
So = 10 + 10 + 5 = 25
MORE ADDITION
5345 + 194 =
5539
MULTIPLICATION
10 x 12 =
120
DIVISION
42 ÷ 7 =
6
If this is too hard, then split it up:
I know that 7x5 = 35 so
7x6 (this means 6 groups of 7) would be
7x5=35 + 7 = 42 (now it would be 6 groups of 7)
ADDITION
888 + 777=
1665
SUBTRACTION
500 - 79=
421
Too hard? Make the numbers on top greater.
500 = 499+1
So (499-79)+1 = 421
MORE SUBTRACTION
1000-643 =
357
If this is too hard, make the top number larger than the bottom number.
1000=999+1
Solve (999-643) +1 =357
MULTIPLICATION
11 x 15 =
165
Too hard? Make 2 easier questions.
I know that 11 = 1 + 10
I can make 2 easier multiplication questions:
(1x15) + (10x15) = 15 + 150 = 165
DIVISION
108 ÷ 9
12