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
1 × 10 = ______
22 + 10 = ______
33 + 10 = ______
6 × 10 = ______
79 − 10 = ______
40 + 10 = ______
55 + 20 = ______
23 + 10 = ______
81 − 10 = ______
64 + 10 = ______
71 + 20 = ______
69 − 10 = ______
59 − 10 = ______
3 × 10 = ______
60 + 10 = ______
66 + 10 = ______
21 − 10 = ______
2 × 10 = ______
4 × 10 = ______
57 − 10 = ______
