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
26 − 10 = ______
15 + 20 = ______
45 + 20 = ______
47 + 10 = ______
5 × 10 = ______
48 − 10 = ______
32 − 10 = ______
37 + 10 = ______
57 + 20 = ______
9 × 10 = ______
20 + 10 = ______
66 + 20 = ______
85 − 10 = ______
27 + 10 = ______
32 + 10 = ______
4 × 10 = ______
60 − 10 = ______
58 − 10 = ______
1 × 10 = ______
7 × 10 = ______
