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
75 − 10 = ______
76 + 10 = ______
1 × 10 = ______
68 − 10 = ______
7 × 10 = ______
26 − 10 = ______
27 + 10 = ______
41 + 20 = ______
20 + 20 = ______
60 + 10 = ______
56 + 10 = ______
49 − 10 = ______
4 × 10 = ______
3 × 10 = ______
68 + 20 = ______
22 − 10 = ______
79 − 10 = ______
61 − 10 = ______
63 − 10 = ______
2 × 10 = ______
