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
43 + 10 = ______
7 × 10 = ______
62 + 10 = ______
6 × 10 = ______
47 + 10 = ______
25 + 20 = ______
74 − 10 = ______
5 × 10 = ______
94 − 10 = ______
63 − 10 = ______
31 + 20 = ______
27 − 10 = ______
9 × 10 = ______
49 + 20 = ______
30 + 20 = ______
8 × 10 = ______
80 − 10 = ______
26 + 10 = ______
78 + 10 = ______
11 + 10 = ______
