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
83 + 20 = ______
60 + 10 = ______
60 + 20 = ______
42 + 10 = ______
31 − 10 = ______
35 + 10 = ______
43 + 10 = ______
86 + 20 = ______
1 × 10 = ______
60 − 10 = ______
24 + 10 = ______
8 × 10 = ______
5 × 10 = ______
73 + 20 = ______
11 + 20 = ______
3 × 10 = ______
23 − 10 = ______
96 − 10 = ______
62 − 10 = ______
6 × 10 = ______
