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 = ______
45 + 10 = ______
23 + 20 = ______
55 + 20 = ______
46 − 10 = ______
13 + 10 = ______
52 − 10 = ______
6 × 10 = ______
56 − 10 = ______
84 − 10 = ______
8 × 10 = ______
40 + 20 = ______
82 − 10 = ______
23 + 10 = ______
70 + 10 = ______
88 + 10 = ______
36 + 10 = ______
27 − 10 = ______
74 − 10 = ______
69 − 10 = ______
