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
52 − 10 = ______
5 × 10 = ______
72 + 10 = ______
57 + 20 = ______
14 + 10 = ______
87 + 10 = ______
2 × 10 = ______
58 − 10 = ______
8 × 10 = ______
6 × 10 = ______
7 × 10 = ______
43 + 10 = ______
77 + 20 = ______
75 − 10 = ______
52 + 20 = ______
80 − 10 = ______
27 + 10 = ______
44 + 20 = ______
61 − 10 = ______
22 + 20 = ______
