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
38 + 10 = ______
25 − 10 = ______
77 + 20 = ______
32 + 20 = ______
32 − 10 = ______
88 + 10 = ______
4 × 10 = ______
49 + 20 = ______
33 + 20 = ______
46 + 10 = ______
7 × 10 = ______
75 − 10 = ______
74 − 10 = ______
83 + 20 = ______
77 + 10 = ______
47 + 10 = ______
6 × 10 = ______
2 × 10 = ______
22 − 10 = ______
78 − 10 = ______
