matemática 2

1 - Escreve os números por extenso até ao quarenta.

1- _______ 2 - ____________
3 - _________ 4 - ____________
5 - _________ 6 - ____________
7 - __________ 8 - ____________
9 - __________ 10 - ___________
11 - _________ 12- ____________
13 - ____________ 14 - _________________
15 - __________ 16 - _________________
17 - ________________ 18 - ___________________
19 - ________________ 20 - ______________
21 - ___________ e ______ 22 - ___________ e _________
23 - __________ e _______ 24 - ____________ e __________
25 - __________ e _______ 26 - ____________ e __________
27 - __________ e _______ 28 - ____________ e __________
29 - __________ e _______ 30 - ______________
31 - __________ e _______ 32 - ____________ e _________
33 - __________ e _______ 34 - ____________ e _________
35 - __________ e ______ 36 - ____________ _e________
37 - __________ e ______ 38 - ____________ e ________
40 - ___________________

2 – Calcule.

30 + ____ = 40 25 + ____ = 40 20 + ____ = 40 32 + ____ = 40
31 + ____ = 40 33 + ____ = 40 35 + ____ = 40 38 + ____ = 40
28 + ____ = 40 23 + ____ = 40 10 + ____ = 40 1 + ____ = 40