Cardinal Numbers:
1 - one 6 - six
2 - two 7 - seven
3 - three 8 - eight
4 - four 9 - nine
5 - five 10 - ten
1+1=2 one and one are two.
2+1=3 two and one are three.
3+2=5 three and two are five.
4-3=1 four minus three is one.
5-2=3 five minus two is three.
10-8=2 ten minus eight is two.
3 • 2=6 three times (by) two is six.
4 • 2=8 four times (by) two is eight.
2 • 5=10 two times (by) five is ten.
Exercise I. Answer the questions.
How much are four and two?
How much is four times two?
How much are seven and two?
How much are six and four?
How much are one and three?
How much is seven minus three?
How much is two times four?
How much is three minus two?
How much is ten times one?
10. How much is ten minus three.
11 - eleven 20 - twenty
12 - twelve 30 - thirty
13 - thirteen 40 - forty
14 - fourteen 50 - fifty
15 - fifteen 60 - sixty
16 - sixteen 70 - seventy
17 - seventeen 80 - eighty
18 - eighteen 90 - ninety
19 - nineteen 100 - one hundred
11+1=12 eleven and one are twelve.
12+8=20 twelve and eight are twenty.
13+6=19 thirteen and six are nineteen.
30-20=10 thirty minus twenty is ten.
17-4=13 seventeen minus four is thirteen.
10•10=100 ten times ten is one hundred.
6 • 8=48 six times eight is forty- eight
100:2=50 one hundred divided by two is fifty.
10=10 ten is equal to ten (ten equals ten)
20<30 twenty (is) less than thirty
40> 15 forty (is) more than fifteen.
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