Matemáticas mentales Worksheet
Recommended for 1er grado — 5to grado
Matemáticas mentales Worksheet
Name: ____________________Date: ____________
Instructions: Usar estrategias mentales como sumar diez, duplicar y compensar para calcular rápidamente.
20 problems
59 + 20 = ______
2 × 10 = ______
43 + 10 = ______
75 − 10 = ______
40 − 10 = ______
3 × 10 = ______
7 × 10 = ______
33 + 20 = ______
56 + 20 = ______
61 − 10 = ______
63 − 10 = ______
70 − 10 = ______
44 − 10 = ______
16 + 10 = ______
6 × 10 = ______
61 + 10 = ______
47 + 10 = ______
59 − 10 = ______
1 × 10 = ______
4 × 10 = ______
