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
7 × 10 = ______
72 + 20 = ______
38 + 10 = ______
55 − 10 = ______
83 − 10 = ______
57 − 10 = ______
87 + 20 = ______
54 + 20 = ______
3 × 10 = ______
77 − 10 = ______
8 × 10 = ______
34 − 10 = ______
26 + 20 = ______
54 − 10 = ______
65 + 20 = ______
41 + 10 = ______
2 × 10 = ______
5 × 10 = ______
27 + 10 = ______
80 − 10 = ______
