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
52 − 10 = ______
61 + 10 = ______
39 + 20 = ______
51 + 10 = ______
4 × 10 = ______
71 − 10 = ______
73 + 10 = ______
95 − 10 = ______
71 + 20 = ______
93 − 10 = ______
7 × 10 = ______
27 − 10 = ______
43 + 20 = ______
58 + 10 = ______
82 − 10 = ______
35 − 10 = ______
35 + 20 = ______
30 + 20 = ______
30 + 10 = ______
5 × 10 = ______
