Counting by 4s

The concept of counting by 4s is used in the table of 4. You can count by fours by adding 4 to the previous number.

If you start with 0 then the numbers counting by four are
0,4,8,12,16,... and so on

If you start with 1 then the numbers counting by four are
1,5,9,13,17,... and so on

Note: If the starting number is odd then the numbers formed by counting by 4's are odd. If the starting number is even then all the counting numbers will be even.

Counting by 4s table

Skip counting by 4s up to 20 times .
I Using the above table, fill in the blanks.
1) 4 x 3 = ---------    2) 4 x 8 = ---------     3) 4 x 6 = ---------   

4) 4 x 9 = ---------    5) 4 x 11 = ---------    6) 4 x 13 = ---------    

7) 4 x 12 = ---------    8) 4 x 15 = ---------    9) 4 x 16 = ---------    

10) 4 x 18 = ---------    11) 4 x 19 = ---------    12) 4 x 20= ---------    

13) 4 x 2 = ---------    14) 4 x 4 = ---------    15) 4 x 5 = ---------    

16) 4 x 7 = ---------    17) 4 x 10 = ---------    18) 4 x 14 = ---------    

19) 4 x 18 = ---------    20) 4 x 19 = ---------    

II Complete the following counting by 4's:
1) 1,5,9,13,___, ____,_____,_____,_____.

2) 32,36,40,44,___, ____,_____,_____,_____.

3) 70,74,78,82,___, ____,_____,_____,_____.

4) 65,69,73,77,___, ____,_____,_____,_____.

Answers

I
1) 12 2) 32 3) 24 4) 36
5) 44 6) 52 7) 48 8) 60
9) 64 10) 72 11) 76 12) 80
13) 8 14) 16 15) 20 16) 28
17) 40 18) 56 19) 72 20) 76

II
1)17,21,25,29,33.

2) 48,52,56,60,64.

3) 86,90,94,98,102.

4) 81,85,89,93,97.

2nd grade math

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