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
58 − 10 = ______
54 + 10 = ______
82 + 10 = ______
66 + 20 = ______
2 × 10 = ______
5 × 10 = ______
41 + 10 = ______
87 + 20 = ______
28 + 20 = ______
26 + 10 = ______
26 + 20 = ______
49 − 10 = ______
3 × 10 = ______
49 + 10 = ______
56 − 10 = ______
40 − 10 = ______
61 − 10 = ______
48 − 10 = ______
58 + 20 = ______
67 + 10 = ______
