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
63 − 10 = ______
58 − 10 = ______
2 × 10 = ______
87 + 20 = ______
92 − 10 = ______
33 − 10 = ______
80 + 20 = ______
74 + 10 = ______
3 × 10 = ______
8 × 10 = ______
25 + 20 = ______
1 × 10 = ______
47 + 20 = ______
75 + 10 = ______
28 − 10 = ______
27 − 10 = ______
83 + 10 = ______
40 + 10 = ______
40 + 20 = ______
5 × 10 = ______
