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
7 × 10 = ______
3 × 10 = ______
4 × 10 = ______
98 − 10 = ______
28 + 10 = ______
21 + 20 = ______
86 + 10 = ______
33 + 20 = ______
40 − 10 = ______
5 × 10 = ______
30 − 10 = ______
6 × 10 = ______
67 + 10 = ______
49 − 10 = ______
13 + 20 = ______
27 + 20 = ______
1 × 10 = ______
17 + 10 = ______
14 + 10 = ______
60 + 10 = ______
