math activity, proposed to students in the fourth and fifth years of elementary school, with problem situations.
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SCHOOL: DATE:
PROF: CLASS:
NAME:
1) Find out which of the four signs (+),( -), (x) and (: ) should complete the sentences below.
a) 55 __ 2= 110
b) 325 __ 75 = 250
c) 9 __ 3= 3
d) 111 __ 111 = 222
2) What is the unknown number in each case?
a) ___ + 6= 12
b) 5 x ___ = 45
c) 12 + ___ = 46
d) 180 – ___ = 150
e) ___ + 220 = 300
f) 6 X ___ = 24
3) What is the number that adding to 9 gives 15?
A:
4) Pedro has 23 carts and his biggest wish is to have 50. How many carts are there for Pedro to have the 50 carts?
A:
5) Which number divided by 3 equals 6?
A:
6) Gabriel is 7 years old and his sister is 10 years old. What is the age difference between Gabriel and his sister?
A:
7) Teacher Clara distributed 18 books to carry out a group work, where each book will be used by two students. How many students does the teacher have?
A:
8) Ludmila and Júlia are together 78 years old. Julia is 38 years old. How old is Ludmila?
A:
9) The triple of a certain number is 21. What is this number?
A:
10) Paulo works at the school library, he received 150 books and needs to distribute them to 30 teachers. How many books will each teacher receive?
A:
Per Perpetual Borges
pedagogue