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
28 − 10 = ______
58 + 20 = ______
12 + 20 = ______
48 + 10 = ______
6 × 10 = ______
29 − 10 = ______
14 + 20 = ______
39 + 20 = ______
68 + 20 = ______
56 − 10 = ______
29 + 20 = ______
28 + 20 = ______
5 × 10 = ______
53 − 10 = ______
7 × 10 = ______
63 − 10 = ______
77 + 10 = ______
19 + 10 = ______
70 + 10 = ______
33 − 10 = ______
