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
55 + 10 = ______
42 − 10 = ______
61 − 10 = ______
4 × 10 = ______
81 + 10 = ______
8 × 10 = ______
7 × 10 = ______
62 + 10 = ______
5 × 10 = ______
59 + 20 = ______
54 + 10 = ______
42 + 20 = ______
22 + 10 = ______
87 − 10 = ______
31 − 10 = ______
6 × 10 = ______
78 + 10 = ______
75 − 10 = ______
51 − 10 = ______
57 − 10 = ______
