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
25 + 20 = ______
71 − 10 = ______
5 × 10 = ______
4 × 10 = ______
26 + 20 = ______
58 − 10 = ______
46 − 10 = ______
2 × 10 = ______
3 × 10 = ______
72 + 10 = ______
20 + 20 = ______
29 + 10 = ______
75 + 10 = ______
77 − 10 = ______
53 + 10 = ______
22 + 10 = ______
26 − 10 = ______
13 + 10 = ______
51 − 10 = ______
32 + 20 = ______
