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
81 + 10 = ______
41 + 20 = ______
8 × 10 = ______
22 − 10 = ______
1 × 10 = ______
75 + 20 = ______
9 × 10 = ______
16 + 20 = ______
67 + 20 = ______
23 + 10 = ______
21 − 10 = ______
44 − 10 = ______
76 + 10 = ______
45 + 20 = ______
52 + 20 = ______
77 + 10 = ______
62 − 10 = ______
7 × 10 = ______
77 − 10 = ______
29 + 10 = ______
