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
49 − 10 = ______
55 − 10 = ______
71 + 10 = ______
5 × 10 = ______
54 + 10 = ______
70 + 10 = ______
36 + 20 = ______
19 + 10 = ______
48 − 10 = ______
64 − 10 = ______
27 + 10 = ______
9 × 10 = ______
8 × 10 = ______
65 + 20 = ______
32 + 10 = ______
53 + 10 = ______
28 + 10 = ______
58 − 10 = ______
26 + 20 = ______
7 × 10 = ______
