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
49 − 10 = ______
5 × 10 = ______
65 − 10 = ______
63 + 10 = ______
8 × 10 = ______
15 + 20 = ______
58 + 20 = ______
49 + 20 = ______
80 + 20 = ______
2 × 10 = ______
68 − 10 = ______
9 × 10 = ______
4 × 10 = ______
40 + 20 = ______
22 + 20 = ______
78 − 10 = ______
30 + 10 = ______
3 × 10 = ______
62 − 10 = ______
74 + 10 = ______
