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
57 + 20 = ______
95 − 10 = ______
8 × 10 = ______
18 + 20 = ______
38 + 20 = ______
5 × 10 = ______
55 + 20 = ______
2 × 10 = ______
60 + 10 = ______
80 − 10 = ______
94 − 10 = ______
89 − 10 = ______
9 × 10 = ______
47 + 10 = ______
81 − 10 = ______
71 − 10 = ______
27 + 10 = ______
40 + 10 = ______
75 + 10 = ______
40 + 20 = ______
