Multiplication
12x 5
60
Say the rounding chant
Find your place, look next door, five or greater add more, four or less stays the same, all numbers in front stay the same, all numbers behind zero is your name
127.2+ 3.254
130.454
A number that cannot be divided or shared evenly
Ex. 1, 3, 5, 7...
What is the product of 53 and 45?
2385
Round 134, 218 to the nearest thousands place
Triangle where all sides and angles are equal.
42.789 - 2. 563
40.226
Which of the following numbers are odd?
1, 87, 45, 28, 54, 30, 26, 91, 92, 9
28, 54, 30, 26, 92
87x 19
1,653
Round 10.978 to the nearest tenths place
11
26.5x 3.7
98.05
A prime number only has 1 and itself as factor and a composite number has more than two factors.
648x 39
25,272
What is 175.39 rounded to the nearest whole number?
175
8.46/ 4
2.115
Which of the following are composite?
20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30
20, 21, 22, 24, 25, 26, 27, 28, 30
499x 183
91,317
Round the following numbers to the nearest hundredths place:
289.456
368.999
218.789
289.46
369
218.79
99.4x 9.73
967.162
Which are prime?
13, 18, 29, 31, 33, 42, 57, 61, 80, 85, 97, 100
13, 31, 57, 61, 97