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
3 × 10 = ______
95 − 10 = ______
73 − 10 = ______
55 − 10 = ______
83 + 20 = ______
6 × 10 = ______
2 × 10 = ______
61 + 10 = ______
87 + 20 = ______
49 + 10 = ______
92 − 10 = ______
25 + 10 = ______
1 × 10 = ______
52 + 20 = ______
5 × 10 = ______
57 − 10 = ______
28 + 20 = ______
82 + 20 = ______
23 + 20 = ______
7 × 10 = ______
