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
3 × 10 = ______
4 × 10 = ______
7 × 10 = ______
41 + 20 = ______
52 + 10 = ______
6 × 10 = ______
28 + 20 = ______
1 × 10 = ______
13 + 10 = ______
33 − 10 = ______
70 + 10 = ______
40 + 10 = ______
48 + 10 = ______
99 − 10 = ______
81 + 10 = ______
29 + 20 = ______
73 + 20 = ______
58 − 10 = ______
86 − 10 = ______
38 − 10 = ______
