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
40 + 10 = ______
11 + 20 = ______
61 − 10 = ______
8 × 10 = ______
64 − 10 = ______
55 + 10 = ______
17 + 10 = ______
90 − 10 = ______
7 × 10 = ______
6 × 10 = ______
82 − 10 = ______
36 − 10 = ______
74 + 10 = ______
27 + 20 = ______
36 + 10 = ______
68 + 10 = ______
54 − 10 = ______
85 − 10 = ______
16 + 10 = ______
58 + 20 = ______
