1- Efetue
2 + 2 = ___ 3 + 3 = ___ 4 +0 = ____ 1 + 2 = ____
4 + 5 = ___ 8 + 2 = ___ 3 + 5 = ____ 9 + 1 = ____
6 – 3 = ___ 4 – 2 = ___ 5 – 3 = ____ 10 – 4 = ___
7 – 4 = ___ 3 – 1 = ___ 1 – 1 = ____ 6 – 0 = ____
2 - 1- Calcule.
2 + 2 = ___ 5 + 3 = ___
4 +0 = ____ 1 + 2 = ____
4 + 5 = ___ 8 + 2 = ___
3 + 5 = ____ 1 + 1 = ____
9 – 3 = ___ 5 – 2 = ___
4 – 3 = ____ 10 – 4 = ___
8 – 4 = ___ 3 – 1 = ___
1 – 1 = ____ 5 – 0 = ____
4- Escreva de 300 até 359.
300 - 301 -____________________________________
310 ________________________________________
320 _______________________________________
330__________________________________________
340_________________________________________
350__________________________________________
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