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
5 × 10 = ______
15 + 10 = ______
15 + 20 = ______
72 + 10 = ______
73 + 10 = ______
8 × 10 = ______
82 + 10 = ______
9 × 10 = ______
3 × 10 = ______
58 − 10 = ______
64 + 20 = ______
21 − 10 = ______
23 + 10 = ______
71 + 10 = ______
51 + 20 = ______
35 + 20 = ______
70 − 10 = ______
16 + 10 = ______
73 − 10 = ______
29 − 10 = ______
