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
82 + 20 = ______
8 × 10 = ______
35 + 20 = ______
5 × 10 = ______
81 + 20 = ______
9 × 10 = ______
72 + 10 = ______
73 + 20 = ______
19 + 10 = ______
37 + 20 = ______
48 + 20 = ______
64 − 10 = ______
51 − 10 = ______
83 − 10 = ______
76 − 10 = ______
3 × 10 = ______
70 + 10 = ______
53 + 10 = ______
90 − 10 = ______
69 + 10 = ______
