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
16 + 10 = ______
38 − 10 = ______
62 + 10 = ______
88 − 10 = ______
43 + 20 = ______
53 + 10 = ______
35 + 10 = ______
3 × 10 = ______
72 + 20 = ______
82 − 10 = ______
5 × 10 = ______
21 + 10 = ______
75 − 10 = ______
1 × 10 = ______
46 + 20 = ______
81 + 10 = ______
33 − 10 = ______
77 − 10 = ______
85 − 10 = ______
26 − 10 = ______
