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
68 + 10 = ______
9 × 10 = ______
11 + 20 = ______
26 + 10 = ______
60 + 20 = ______
67 + 10 = ______
4 × 10 = ______
82 − 10 = ______
42 + 20 = ______
85 + 20 = ______
57 + 10 = ______
56 − 10 = ______
3 × 10 = ______
97 − 10 = ______
51 − 10 = ______
94 − 10 = ______
65 + 10 = ______
88 + 20 = ______
2 × 10 = ______
77 + 10 = ______
