math vocab
2x4 = 8 and 4x2=8 what are these facts called
fact family
any number times zero is
zero
2x1=
2
9x2 and 2x9
2x9 = 18 and 9x2=18
10x5 = and 5 x 10 =
10x5= 50 and 5 x10= 50
Adding the same numbers to itself 2+2+2+2 =8 is called
repeated addition
any number times 1 is
that number
3x4 and 4x 3
12
7x3 = and 3x7 =
7x3= 21 and 3x7= 21
4 x 11= and 11 x 4 =
4 x 11 = 44 and 11 x 4= 44
2x2 are called
factors
when multiplying by 2s you skip count by
2s
8x2 and 2x8
16
3x6 = 6x3 =
3x6=18 and 6x3 = 18
2 x 5 = and 5 x 2 =
2 x 5 = 10 and 5 x 2 = 10
2x2= 4 (the 4 is called the)
product
when multiplying by 3s you skip count by
3s
2x2 and 3x3
2 x2 =4 3x3 = 9
5x3 = and 3x5=
5x3=15 and 3x5= 15
5 x 5 and 3 x3
5 x 5 = 25 and 3 x 3 = 9
groups that have the same amount in each group is called
equal groups
when multiplying by 10 you are skip counting by
10
1x9 and 11 x 9
1x9=9 and 11x9=99
1x10 = and 10x0 =
1x10=10 and 10 x 0 =0
1x1 = and 2x2 = and 3x3 = and 5x5 =
1x1=1 and 2x2=4 and 3x3=9 and 5x5=25